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Finding the Fourth Proportional to 262,061.70, 392,120.55 and 192,077.70

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Solution

The fourth proportional to 262,061.70, 392,120.55 and 192,077.70 is: 287,404.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,061.70 : 392,120.55 = 192,077.70 : x
  2. Step 2: Convert to fraction form
    262,061.70/392,120.55 = 192,077.70/x
  3. Step 3: Cross multiply
    262,061.70x = 392,120.55 × 192,077.70
  4. Step 4: Simplify right side
    262,061.70x = 75,317,613,366.74
  5. Step 5: Solve for x
    x = 75,317,613,366.74/262,061.70
  6. Step 6: Final answer
    x = 287,404.12

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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.