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Finding the Fourth Proportional to 317,335.44, 476,004.28 and 80,678.15

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Solution

The fourth proportional to 317,335.44, 476,004.28 and 80,678.15 is: 121,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,335.44 : 476,004.28 = 80,678.15 : x
  2. Step 2: Convert to fraction form
    317,335.44/476,004.28 = 80,678.15/x
  3. Step 3: Cross multiply
    317,335.44x = 476,004.28 × 80,678.15
  4. Step 4: Simplify right side
    317,335.44x = 38,403,144,702.48
  5. Step 5: Solve for x
    x = 38,403,144,702.48/317,335.44
  6. Step 6: Final answer
    x = 121,017.51

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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.