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Finding the Fourth Proportional to 178,556, 267,835.52 and 45,436.40

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Solution

The fourth proportional to 178,556, 267,835.52 and 45,436.40 is: 68,154.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,556 : 267,835.52 = 45,436.40 : x
  2. Step 2: Convert to fraction form
    178,556/267,835.52 = 45,436.40/x
  3. Step 3: Cross multiply
    178,556x = 267,835.52 × 45,436.40
  4. Step 4: Simplify right side
    178,556x = 12,169,481,820.93
  5. Step 5: Solve for x
    x = 12,169,481,820.93/178,556
  6. Step 6: Final answer
    x = 68,154.99

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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.