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Finding the Fourth Proportional to 243,191.58, 364,039.97 and 207,319.38

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Solution

The fourth proportional to 243,191.58, 364,039.97 and 207,319.38 is: 310,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,191.58 : 364,039.97 = 207,319.38 : x
  2. Step 2: Convert to fraction form
    243,191.58/364,039.97 = 207,319.38/x
  3. Step 3: Cross multiply
    243,191.58x = 364,039.97 × 207,319.38
  4. Step 4: Simplify right side
    243,191.58x = 75,472,539,839.02
  5. Step 5: Solve for x
    x = 75,472,539,839.02/243,191.58
  6. Step 6: Final answer
    x = 310,341.91

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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.