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Finding the Fourth Proportional to 435,703.20, 653,425.20 and 169,310.40

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Solution

The fourth proportional to 435,703.20, 653,425.20 and 169,310.40 is: 253,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,703.20 : 653,425.20 = 169,310.40 : x
  2. Step 2: Convert to fraction form
    435,703.20/653,425.20 = 169,310.40/x
  3. Step 3: Cross multiply
    435,703.20x = 653,425.20 × 169,310.40
  4. Step 4: Simplify right side
    435,703.20x = 110,631,681,982.08
  5. Step 5: Solve for x
    x = 110,631,681,982.08/435,703.20
  6. Step 6: Final answer
    x = 253,915.24

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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.