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Finding the Fourth Proportional to 373,712, 515,724.16 and 203,949.76

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Solution

The fourth proportional to 373,712, 515,724.16 and 203,949.76 is: 281,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,712 : 515,724.16 = 203,949.76 : x
  2. Step 2: Convert to fraction form
    373,712/515,724.16 = 203,949.76/x
  3. Step 3: Cross multiply
    373,712x = 515,724.16 × 203,949.76
  4. Step 4: Simplify right side
    373,712x = 105,181,818,658.20
  5. Step 5: Solve for x
    x = 105,181,818,658.20/373,712
  6. Step 6: Final answer
    x = 281,451.54

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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.