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Finding the Fourth Proportional to 373,657.50, 515,880.63 and 239,754.78

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Solution

The fourth proportional to 373,657.50, 515,880.63 and 239,754.78 is: 331,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,657.50 : 515,880.63 = 239,754.78 : x
  2. Step 2: Convert to fraction form
    373,657.50/515,880.63 = 239,754.78/x
  3. Step 3: Cross multiply
    373,657.50x = 515,880.63 × 239,754.78
  4. Step 4: Simplify right side
    373,657.50x = 123,684,846,951.91
  5. Step 5: Solve for x
    x = 123,684,846,951.91/373,657.50
  6. Step 6: Final answer
    x = 331,011.28

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1.5x scale

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.