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Finding the Fourth Proportional to 243,522.46, 365,320.14 and 85,723.12

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Solution

The fourth proportional to 243,522.46, 365,320.14 and 85,723.12 is: 128,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,522.46 : 365,320.14 = 85,723.12 : x
  2. Step 2: Convert to fraction form
    243,522.46/365,320.14 = 85,723.12/x
  3. Step 3: Cross multiply
    243,522.46x = 365,320.14 × 85,723.12
  4. Step 4: Simplify right side
    243,522.46x = 31,316,381,286.34
  5. Step 5: Solve for x
    x = 31,316,381,286.34/243,522.46
  6. Step 6: Final answer
    x = 128,597.51

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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.