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Finding the Fourth Proportional to 339,938.10, 509,907.15 and 227,963.70

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Solution

The fourth proportional to 339,938.10, 509,907.15 and 227,963.70 is: 341,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,938.10 : 509,907.15 = 227,963.70 : x
  2. Step 2: Convert to fraction form
    339,938.10/509,907.15 = 227,963.70/x
  3. Step 3: Cross multiply
    339,938.10x = 509,907.15 × 227,963.70
  4. Step 4: Simplify right side
    339,938.10x = 116,240,320,570.46
  5. Step 5: Solve for x
    x = 116,240,320,570.46/339,938.10
  6. Step 6: Final answer
    x = 341,945.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.