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Finding the Fourth Proportional to 317,077.98, 475,626.08 and 80,420.28

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Solution

The fourth proportional to 317,077.98, 475,626.08 and 80,420.28 is: 120,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,077.98 : 475,626.08 = 80,420.28 : x
  2. Step 2: Convert to fraction form
    317,077.98/475,626.08 = 80,420.28/x
  3. Step 3: Cross multiply
    317,077.98x = 475,626.08 × 80,420.28
  4. Step 4: Simplify right side
    317,077.98x = 38,249,982,528.90
  5. Step 5: Solve for x
    x = 38,249,982,528.90/317,077.98
  6. Step 6: Final answer
    x = 120,632.73

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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.