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Finding the Fourth Proportional to 317,335.95, 476,005.03 and 80,678.65

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Solution

The fourth proportional to 317,335.95, 476,005.03 and 80,678.65 is: 121,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,335.95 : 476,005.03 = 80,678.65 : x
  2. Step 2: Convert to fraction form
    317,335.95/476,005.03 = 80,678.65/x
  3. Step 3: Cross multiply
    317,335.95x = 476,005.03 × 80,678.65
  4. Step 4: Simplify right side
    317,335.95x = 38,403,443,213.61
  5. Step 5: Solve for x
    x = 38,403,443,213.61/317,335.95
  6. Step 6: Final answer
    x = 121,018.26

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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.