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Finding the Fourth Proportional to 388,630.47, 582,945.71 and 151,807.07

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Solution

The fourth proportional to 388,630.47, 582,945.71 and 151,807.07 is: 227,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,630.47 : 582,945.71 = 151,807.07 : x
  2. Step 2: Convert to fraction form
    388,630.47/582,945.71 = 151,807.07/x
  3. Step 3: Cross multiply
    388,630.47x = 582,945.71 × 151,807.07
  4. Step 4: Simplify right side
    388,630.47x = 88,495,276,530.41
  5. Step 5: Solve for x
    x = 88,495,276,530.41/388,630.47
  6. Step 6: Final answer
    x = 227,710.60

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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.