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Finding the Fourth Proportional to 542,161.16, 748,184.16 and 300,447.72

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Solution

The fourth proportional to 542,161.16, 748,184.16 and 300,447.72 is: 414,618.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,161.16 : 748,184.16 = 300,447.72 : x
  2. Step 2: Convert to fraction form
    542,161.16/748,184.16 = 300,447.72/x
  3. Step 3: Cross multiply
    542,161.16x = 748,184.16 × 300,447.72
  4. Step 4: Simplify right side
    542,161.16x = 224,790,225,012.12
  5. Step 5: Solve for x
    x = 224,790,225,012.12/542,161.16
  6. Step 6: Final answer
    x = 414,618.83

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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.