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Finding the Fourth Proportional to 263,233.40, 394,590.90 and 130,134.20

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Solution

The fourth proportional to 263,233.40, 394,590.90 and 130,134.20 is: 195,073.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,233.40 : 394,590.90 = 130,134.20 : x
  2. Step 2: Convert to fraction form
    263,233.40/394,590.90 = 130,134.20/x
  3. Step 3: Cross multiply
    263,233.40x = 394,590.90 × 130,134.20
  4. Step 4: Simplify right side
    263,233.40x = 51,349,771,098.78
  5. Step 5: Solve for x
    x = 51,349,771,098.78/263,233.40
  6. Step 6: Final answer
    x = 195,073.16

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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.