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Finding the Fourth Proportional to 238,307.58, 357,512.81 and 80,532.54

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Solution

The fourth proportional to 238,307.58, 357,512.81 and 80,532.54 is: 120,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,307.58 : 357,512.81 = 80,532.54 : x
  2. Step 2: Convert to fraction form
    238,307.58/357,512.81 = 80,532.54/x
  3. Step 3: Cross multiply
    238,307.58x = 357,512.81 × 80,532.54
  4. Step 4: Simplify right side
    238,307.58x = 28,791,414,269.17
  5. Step 5: Solve for x
    x = 28,791,414,269.17/238,307.58
  6. Step 6: Final answer
    x = 120,816.19

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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.