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Finding the Fourth Proportional to 435,344.80, 652,210.80 and 247,799.20

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Solution

The fourth proportional to 435,344.80, 652,210.80 and 247,799.20 is: 371,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,344.80 : 652,210.80 = 247,799.20 : x
  2. Step 2: Convert to fraction form
    435,344.80/652,210.80 = 247,799.20/x
  3. Step 3: Cross multiply
    435,344.80x = 652,210.80 × 247,799.20
  4. Step 4: Simplify right side
    435,344.80x = 161,617,314,471.36
  5. Step 5: Solve for x
    x = 161,617,314,471.36/435,344.80
  6. Step 6: Final answer
    x = 371,239.80

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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.