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Finding the Fourth Proportional to 239,691, 330,773.58 and 133,707

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Solution

The fourth proportional to 239,691, 330,773.58 and 133,707 is: 184,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,691 : 330,773.58 = 133,707 : x
  2. Step 2: Convert to fraction form
    239,691/330,773.58 = 133,707/x
  3. Step 3: Cross multiply
    239,691x = 330,773.58 × 133,707
  4. Step 4: Simplify right side
    239,691x = 44,226,743,061.06
  5. Step 5: Solve for x
    x = 44,226,743,061.06/239,691
  6. Step 6: Final answer
    x = 184,515.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.