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Finding the Fourth Proportional to 247,908.57, 371,889.27 and 79,368.63

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Solution

The fourth proportional to 247,908.57, 371,889.27 and 79,368.63 is: 119,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,908.57 : 371,889.27 = 79,368.63 : x
  2. Step 2: Convert to fraction form
    247,908.57/371,889.27 = 79,368.63/x
  3. Step 3: Cross multiply
    247,908.57x = 371,889.27 × 79,368.63
  4. Step 4: Simplify right side
    247,908.57x = 29,516,341,871.60
  5. Step 5: Solve for x
    x = 29,516,341,871.60/247,908.57
  6. Step 6: Final answer
    x = 119,061.40

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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.