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Finding the Fourth Proportional to 393,254.29, 542,609.56 and 229,879.24

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Solution

The fourth proportional to 393,254.29, 542,609.56 and 229,879.24 is: 317,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,254.29 : 542,609.56 = 229,879.24 : x
  2. Step 2: Convert to fraction form
    393,254.29/542,609.56 = 229,879.24/x
  3. Step 3: Cross multiply
    393,254.29x = 542,609.56 × 229,879.24
  4. Step 4: Simplify right side
    393,254.29x = 124,734,676,251.46
  5. Step 5: Solve for x
    x = 124,734,676,251.46/393,254.29
  6. Step 6: Final answer
    x = 317,185.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.