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Finding the Fourth Proportional to 524,377.92, 786,400.12 and 169,309.36

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Solution

The fourth proportional to 524,377.92, 786,400.12 and 169,309.36 is: 253,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,377.92 : 786,400.12 = 169,309.36 : x
  2. Step 2: Convert to fraction form
    524,377.92/786,400.12 = 169,309.36/x
  3. Step 3: Cross multiply
    524,377.92x = 786,400.12 × 169,309.36
  4. Step 4: Simplify right side
    524,377.92x = 133,144,901,021.12
  5. Step 5: Solve for x
    x = 133,144,901,021.12/524,377.92
  6. Step 6: Final answer
    x = 253,910.20

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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.