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Finding the Fourth Proportional to 304,562.85, 420,155.96 and 197,167.65

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Solution

The fourth proportional to 304,562.85, 420,155.96 and 197,167.65 is: 272,000.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,562.85 : 420,155.96 = 197,167.65 : x
  2. Step 2: Convert to fraction form
    304,562.85/420,155.96 = 197,167.65/x
  3. Step 3: Cross multiply
    304,562.85x = 420,155.96 × 197,167.65
  4. Step 4: Simplify right side
    304,562.85x = 82,841,162,280.86
  5. Step 5: Solve for x
    x = 82,841,162,280.86/304,562.85
  6. Step 6: Final answer
    x = 272,000.22

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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.