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Finding the Fourth Proportional to 339,980.45, 509,970.68 and 162,833.45

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Solution

The fourth proportional to 339,980.45, 509,970.68 and 162,833.45 is: 244,250.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,980.45 : 509,970.68 = 162,833.45 : x
  2. Step 2: Convert to fraction form
    339,980.45/509,970.68 = 162,833.45/x
  3. Step 3: Cross multiply
    339,980.45x = 509,970.68 × 162,833.45
  4. Step 4: Simplify right side
    339,980.45x = 83,040,285,223.25
  5. Step 5: Solve for x
    x = 83,040,285,223.25/339,980.45
  6. Step 6: Final answer
    x = 244,250.18

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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.