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Finding the Fourth Proportional to 373,957.50, 515,799.45 and 253,045.56

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Solution

The fourth proportional to 373,957.50, 515,799.45 and 253,045.56 is: 349,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,957.50 : 515,799.45 = 253,045.56 : x
  2. Step 2: Convert to fraction form
    373,957.50/515,799.45 = 253,045.56/x
  3. Step 3: Cross multiply
    373,957.50x = 515,799.45 × 253,045.56
  4. Step 4: Simplify right side
    373,957.50x = 130,520,760,672.94
  5. Step 5: Solve for x
    x = 130,520,760,672.94/373,957.50
  6. Step 6: Final answer
    x = 349,025.65

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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.