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Finding the Fourth Proportional to 388,641.59, 582,962.38 and 151,818.19

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Solution

The fourth proportional to 388,641.59, 582,962.38 and 151,818.19 is: 227,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,641.59 : 582,962.38 = 151,818.19 : x
  2. Step 2: Convert to fraction form
    388,641.59/582,962.38 = 151,818.19/x
  3. Step 3: Cross multiply
    388,641.59x = 582,962.38 × 151,818.19
  4. Step 4: Simplify right side
    388,641.59x = 88,504,291,532.74
  5. Step 5: Solve for x
    x = 88,504,291,532.74/388,641.59
  6. Step 6: Final answer
    x = 227,727.28

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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.