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Finding the Fourth Proportional to 488,117.10, 732,175.65 and 278,165.10

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Solution

The fourth proportional to 488,117.10, 732,175.65 and 278,165.10 is: 417,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,117.10 : 732,175.65 = 278,165.10 : x
  2. Step 2: Convert to fraction form
    488,117.10/732,175.65 = 278,165.10/x
  3. Step 3: Cross multiply
    488,117.10x = 732,175.65 × 278,165.10
  4. Step 4: Simplify right side
    488,117.10x = 203,665,712,899.82
  5. Step 5: Solve for x
    x = 203,665,712,899.82/488,117.10
  6. Step 6: Final answer
    x = 417,247.65

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Similar ratio
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1.5x scale

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.