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Finding the Fourth Proportional to 388,300.38, 582,212.70 and 151,366.26

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Solution

The fourth proportional to 388,300.38, 582,212.70 and 151,366.26 is: 226,956.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,300.38 : 582,212.70 = 151,366.26 : x
  2. Step 2: Convert to fraction form
    388,300.38/582,212.70 = 151,366.26/x
  3. Step 3: Cross multiply
    388,300.38x = 582,212.70 × 151,366.26
  4. Step 4: Simplify right side
    388,300.38x = 88,127,358,923.50
  5. Step 5: Solve for x
    x = 88,127,358,923.50/388,300.38
  6. Step 6: Final answer
    x = 226,956.66

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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.