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Finding the Fourth Proportional to 435,729.20, 653,464.20 and 169,336.40

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Solution

The fourth proportional to 435,729.20, 653,464.20 and 169,336.40 is: 253,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,729.20 : 653,464.20 = 169,336.40 : x
  2. Step 2: Convert to fraction form
    435,729.20/653,464.20 = 169,336.40/x
  3. Step 3: Cross multiply
    435,729.20x = 653,464.20 × 169,336.40
  4. Step 4: Simplify right side
    435,729.20x = 110,655,275,156.88
  5. Step 5: Solve for x
    x = 110,655,275,156.88/435,729.20
  6. Step 6: Final answer
    x = 253,954.23

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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.