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Finding the Fourth Proportional to 388,648.71, 582,973.07 and 151,825.32

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Solution

The fourth proportional to 388,648.71, 582,973.07 and 151,825.32 is: 227,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,648.71 : 582,973.07 = 151,825.32 : x
  2. Step 2: Convert to fraction form
    388,648.71/582,973.07 = 151,825.32/x
  3. Step 3: Cross multiply
    388,648.71x = 582,973.07 × 151,825.32
  4. Step 4: Simplify right side
    388,648.71x = 88,510,072,145.01
  5. Step 5: Solve for x
    x = 88,510,072,145.01/388,648.71
  6. Step 6: Final answer
    x = 227,737.98

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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.