Home / 388,331.29-582,530.19-118,520.17

Finding the Fourth Proportional to 388,331.29, 582,530.19 and 118,520.17

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Solution

The fourth proportional to 388,331.29, 582,530.19 and 118,520.17 is: 177,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,331.29 : 582,530.19 = 118,520.17 : x
  2. Step 2: Convert to fraction form
    388,331.29/582,530.19 = 118,520.17/x
  3. Step 3: Cross multiply
    388,331.29x = 582,530.19 × 118,520.17
  4. Step 4: Simplify right side
    388,331.29x = 69,041,577,148.93
  5. Step 5: Solve for x
    x = 69,041,577,148.93/388,331.29
  6. Step 6: Final answer
    x = 177,790.40

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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.