Home / 388,076-582,116.66-148,125.20

Finding the Fourth Proportional to 388,076, 582,116.66 and 148,125.20

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Solution

The fourth proportional to 388,076, 582,116.66 and 148,125.20 is: 222,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,076 : 582,116.66 = 148,125.20 : x
  2. Step 2: Convert to fraction form
    388,076/582,116.66 = 148,125.20/x
  3. Step 3: Cross multiply
    388,076x = 582,116.66 × 148,125.20
  4. Step 4: Simplify right side
    388,076x = 86,226,145,945.21
  5. Step 5: Solve for x
    x = 86,226,145,945.21/388,076
  6. Step 6: Final answer
    x = 222,188.81

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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.