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Finding the Fourth Proportional to 344,711.04, 475,586.88 and 280,939.20

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Solution

The fourth proportional to 344,711.04, 475,586.88 and 280,939.20 is: 387,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,711.04 : 475,586.88 = 280,939.20 : x
  2. Step 2: Convert to fraction form
    344,711.04/475,586.88 = 280,939.20/x
  3. Step 3: Cross multiply
    344,711.04x = 475,586.88 × 280,939.20
  4. Step 4: Simplify right side
    344,711.04x = 133,610,997,597.70
  5. Step 5: Solve for x
    x = 133,610,997,597.70/344,711.04
  6. Step 6: Final answer
    x = 387,602.90

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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.