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Finding the Fourth Proportional to 372,402.67, 513,925.67 and 211,281.92

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Solution

The fourth proportional to 372,402.67, 513,925.67 and 211,281.92 is: 291,574.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,402.67 : 513,925.67 = 211,281.92 : x
  2. Step 2: Convert to fraction form
    372,402.67/513,925.67 = 211,281.92/x
  3. Step 3: Cross multiply
    372,402.67x = 513,925.67 × 211,281.92
  4. Step 4: Simplify right side
    372,402.67x = 108,583,204,107.91
  5. Step 5: Solve for x
    x = 108,583,204,107.91/372,402.67
  6. Step 6: Final answer
    x = 291,574.72

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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.