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Finding the Fourth Proportional to 369,053.38, 509,331.29 and 225,908.02

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Solution

The fourth proportional to 369,053.38, 509,331.29 and 225,908.02 is: 311,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,053.38 : 509,331.29 = 225,908.02 : x
  2. Step 2: Convert to fraction form
    369,053.38/509,331.29 = 225,908.02/x
  3. Step 3: Cross multiply
    369,053.38x = 509,331.29 × 225,908.02
  4. Step 4: Simplify right side
    369,053.38x = 115,062,023,247.95
  5. Step 5: Solve for x
    x = 115,062,023,247.95/369,053.38
  6. Step 6: Final answer
    x = 311,776.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.