Home / 387,995.10-582,017.22-121,766.13

Finding the Fourth Proportional to 387,995.10, 582,017.22 and 121,766.13

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Solution

The fourth proportional to 387,995.10, 582,017.22 and 121,766.13 is: 182,656.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,995.10 : 582,017.22 = 121,766.13 : x
  2. Step 2: Convert to fraction form
    387,995.10/582,017.22 = 121,766.13/x
  3. Step 3: Cross multiply
    387,995.10x = 582,017.22 × 121,766.13
  4. Step 4: Simplify right side
    387,995.10x = 70,869,984,472.76
  5. Step 5: Solve for x
    x = 70,869,984,472.76/387,995.10
  6. Step 6: Final answer
    x = 182,656.91

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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.