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Finding the Fourth Proportional to 663,521.52, 995,476.67 and 214,233.96

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Solution

The fourth proportional to 663,521.52, 995,476.67 and 214,233.96 is: 321,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,521.52 : 995,476.67 = 214,233.96 : x
  2. Step 2: Convert to fraction form
    663,521.52/995,476.67 = 214,233.96/x
  3. Step 3: Cross multiply
    663,521.52x = 995,476.67 × 214,233.96
  4. Step 4: Simplify right side
    663,521.52x = 213,264,909,101.71
  5. Step 5: Solve for x
    x = 213,264,909,101.71/663,521.52
  6. Step 6: Final answer
    x = 321,413.70

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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.