Home / 388,123.36-582,000.69-135,373.16

Finding the Fourth Proportional to 388,123.36, 582,000.69 and 135,373.16

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Solution

The fourth proportional to 388,123.36, 582,000.69 and 135,373.16 is: 202,995.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,123.36 : 582,000.69 = 135,373.16 : x
  2. Step 2: Convert to fraction form
    388,123.36/582,000.69 = 135,373.16/x
  3. Step 3: Cross multiply
    388,123.36x = 582,000.69 × 135,373.16
  4. Step 4: Simplify right side
    388,123.36x = 78,787,272,527.48
  5. Step 5: Solve for x
    x = 78,787,272,527.48/388,123.36
  6. Step 6: Final answer
    x = 202,995.44

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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.