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Finding the Fourth Proportional to 357,888.31, 536,791.89 and 91,650.76

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Solution

The fourth proportional to 357,888.31, 536,791.89 and 91,650.76 is: 137,465.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,888.31 : 536,791.89 = 91,650.76 : x
  2. Step 2: Convert to fraction form
    357,888.31/536,791.89 = 91,650.76/x
  3. Step 3: Cross multiply
    357,888.31x = 536,791.89 × 91,650.76
  4. Step 4: Simplify right side
    357,888.31x = 49,197,384,680.34
  5. Step 5: Solve for x
    x = 49,197,384,680.34/357,888.31
  6. Step 6: Final answer
    x = 137,465.75

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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.