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Finding the Fourth Proportional to 388,335.88, 582,713.08 and 163,851.90

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Solution

The fourth proportional to 388,335.88, 582,713.08 and 163,851.90 is: 245,866.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,335.88 : 582,713.08 = 163,851.90 : x
  2. Step 2: Convert to fraction form
    388,335.88/582,713.08 = 163,851.90/x
  3. Step 3: Cross multiply
    388,335.88x = 582,713.08 × 163,851.90
  4. Step 4: Simplify right side
    388,335.88x = 95,478,645,312.85
  5. Step 5: Solve for x
    x = 95,478,645,312.85/388,335.88
  6. Step 6: Final answer
    x = 245,866.14

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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.