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Finding the Fourth Proportional to 360,089.56, 540,200 and 123,456.16

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Solution

The fourth proportional to 360,089.56, 540,200 and 123,456.16 is: 185,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,089.56 : 540,200 = 123,456.16 : x
  2. Step 2: Convert to fraction form
    360,089.56/540,200 = 123,456.16/x
  3. Step 3: Cross multiply
    360,089.56x = 540,200 × 123,456.16
  4. Step 4: Simplify right side
    360,089.56x = 66,691,017,632
  5. Step 5: Solve for x
    x = 66,691,017,632/360,089.56
  6. Step 6: Final answer
    x = 185,206.75

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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.