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Finding the Fourth Proportional to 356,658.10, 492,062.06 and 203,585.88

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Solution

The fourth proportional to 356,658.10, 492,062.06 and 203,585.88 is: 280,876.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,658.10 : 492,062.06 = 203,585.88 : x
  2. Step 2: Convert to fraction form
    356,658.10/492,062.06 = 203,585.88/x
  3. Step 3: Cross multiply
    356,658.10x = 492,062.06 × 203,585.88
  4. Step 4: Simplify right side
    356,658.10x = 100,176,887,499.71
  5. Step 5: Solve for x
    x = 100,176,887,499.71/356,658.10
  6. Step 6: Final answer
    x = 280,876.52

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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.