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Finding the Fourth Proportional to 435,509.13, 653,305.01 and 169,290.21

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Solution

The fourth proportional to 435,509.13, 653,305.01 and 169,290.21 is: 253,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,509.13 : 653,305.01 = 169,290.21 : x
  2. Step 2: Convert to fraction form
    435,509.13/653,305.01 = 169,290.21/x
  3. Step 3: Cross multiply
    435,509.13x = 653,305.01 × 169,290.21
  4. Step 4: Simplify right side
    435,509.13x = 110,598,141,490.50
  5. Step 5: Solve for x
    x = 110,598,141,490.50/435,509.13
  6. Step 6: Final answer
    x = 253,951.37

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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.