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Finding the Fourth Proportional to 542,163.16, 748,186.92 and 300,449.72

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Solution

The fourth proportional to 542,163.16, 748,186.92 and 300,449.72 is: 414,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,163.16 : 748,186.92 = 300,449.72 : x
  2. Step 2: Convert to fraction form
    542,163.16/748,186.92 = 300,449.72/x
  3. Step 3: Cross multiply
    542,163.16x = 748,186.92 × 300,449.72
  4. Step 4: Simplify right side
    542,163.16x = 224,792,550,621.66
  5. Step 5: Solve for x
    x = 224,792,550,621.66/542,163.16
  6. Step 6: Final answer
    x = 414,621.59

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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.