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Finding the Fourth Proportional to 341,877.80, 512,816.70 and 247,399.40

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Solution

The fourth proportional to 341,877.80, 512,816.70 and 247,399.40 is: 371,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,877.80 : 512,816.70 = 247,399.40 : x
  2. Step 2: Convert to fraction form
    341,877.80/512,816.70 = 247,399.40/x
  3. Step 3: Cross multiply
    341,877.80x = 512,816.70 × 247,399.40
  4. Step 4: Simplify right side
    341,877.80x = 126,870,543,889.98
  5. Step 5: Solve for x
    x = 126,870,543,889.98/341,877.80
  6. Step 6: Final answer
    x = 371,099.10

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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.