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Finding the Fourth Proportional to 258,197.29, 384,700.79 and 243,693.95

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Solution

The fourth proportional to 258,197.29, 384,700.79 and 243,693.95 is: 363,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,197.29 : 384,700.79 = 243,693.95 : x
  2. Step 2: Convert to fraction form
    258,197.29/384,700.79 = 243,693.95/x
  3. Step 3: Cross multiply
    258,197.29x = 384,700.79 × 243,693.95
  4. Step 4: Simplify right side
    258,197.29x = 93,749,253,768.95
  5. Step 5: Solve for x
    x = 93,749,253,768.95/258,197.29
  6. Step 6: Final answer
    x = 363,091.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.