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Finding the Fourth Proportional to 388,385.34, 582,804.45 and 163,732.02

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Solution

The fourth proportional to 388,385.34, 582,804.45 and 163,732.02 is: 245,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,385.34 : 582,804.45 = 163,732.02 : x
  2. Step 2: Convert to fraction form
    388,385.34/582,804.45 = 163,732.02/x
  3. Step 3: Cross multiply
    388,385.34x = 582,804.45 × 163,732.02
  4. Step 4: Simplify right side
    388,385.34x = 95,423,749,863.49
  5. Step 5: Solve for x
    x = 95,423,749,863.49/388,385.34
  6. Step 6: Final answer
    x = 245,693.49

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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.