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Finding the Fourth Proportional to 279,252.92, 385,352.74 and 156,733.92

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Solution

The fourth proportional to 279,252.92, 385,352.74 and 156,733.92 is: 216,283.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,252.92 : 385,352.74 = 156,733.92 : x
  2. Step 2: Convert to fraction form
    279,252.92/385,352.74 = 156,733.92/x
  3. Step 3: Cross multiply
    279,252.92x = 385,352.74 × 156,733.92
  4. Step 4: Simplify right side
    279,252.92x = 60,397,845,522.94
  5. Step 5: Solve for x
    x = 60,397,845,522.94/279,252.92
  6. Step 6: Final answer
    x = 216,283.67

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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.