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Finding the Fourth Proportional to 339,758.76, 509,641.23 and 103,101.45

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Solution

The fourth proportional to 339,758.76, 509,641.23 and 103,101.45 is: 154,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,758.76 : 509,641.23 = 103,101.45 : x
  2. Step 2: Convert to fraction form
    339,758.76/509,641.23 = 103,101.45/x
  3. Step 3: Cross multiply
    339,758.76x = 509,641.23 × 103,101.45
  4. Step 4: Simplify right side
    339,758.76x = 52,544,749,792.78
  5. Step 5: Solve for x
    x = 52,544,749,792.78/339,758.76
  6. Step 6: Final answer
    x = 154,653.11

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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.