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Finding the Fourth Proportional to 257,927.20, 386,234.70 and 246,117.40

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Solution

The fourth proportional to 257,927.20, 386,234.70 and 246,117.40 is: 368,550.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,927.20 : 386,234.70 = 246,117.40 : x
  2. Step 2: Convert to fraction form
    257,927.20/386,234.70 = 246,117.40/x
  3. Step 3: Cross multiply
    257,927.20x = 386,234.70 × 246,117.40
  4. Step 4: Simplify right side
    257,927.20x = 95,059,080,153.78
  5. Step 5: Solve for x
    x = 95,059,080,153.78/257,927.20
  6. Step 6: Final answer
    x = 368,550.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.