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Finding the Fourth Proportional to 388,590.90, 582,964.92 and 163,951.89

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Solution

The fourth proportional to 388,590.90, 582,964.92 and 163,951.89 is: 245,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,590.90 : 582,964.92 = 163,951.89 : x
  2. Step 2: Convert to fraction form
    388,590.90/582,964.92 = 163,951.89/x
  3. Step 3: Cross multiply
    388,590.90x = 582,964.92 × 163,951.89
  4. Step 4: Simplify right side
    388,590.90x = 95,578,200,437.70
  5. Step 5: Solve for x
    x = 95,578,200,437.70/388,590.90
  6. Step 6: Final answer
    x = 245,960.98

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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.