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Finding the Fourth Proportional to 542,162.77, 748,188.80 and 300,449.25

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Solution

The fourth proportional to 542,162.77, 748,188.80 and 300,449.25 is: 414,622.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,162.77 : 748,188.80 = 300,449.25 : x
  2. Step 2: Convert to fraction form
    542,162.77/748,188.80 = 300,449.25/x
  3. Step 3: Cross multiply
    542,162.77x = 748,188.80 × 300,449.25
  4. Step 4: Simplify right side
    542,162.77x = 224,792,763,442.84
  5. Step 5: Solve for x
    x = 224,792,763,442.84/542,162.77
  6. Step 6: Final answer
    x = 414,622.28

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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.