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Finding the Fourth Proportional to 284,477.50, 426,418.21 and 132,549.31

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Solution

The fourth proportional to 284,477.50, 426,418.21 and 132,549.31 is: 198,685.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,477.50 : 426,418.21 = 132,549.31 : x
  2. Step 2: Convert to fraction form
    284,477.50/426,418.21 = 132,549.31/x
  3. Step 3: Cross multiply
    284,477.50x = 426,418.21 × 132,549.31
  4. Step 4: Simplify right side
    284,477.50x = 56,521,437,807.04
  5. Step 5: Solve for x
    x = 56,521,437,807.04/284,477.50
  6. Step 6: Final answer
    x = 198,685.09

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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.