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Finding the Fourth Proportional to 284,079.40, 425,600.70 and 173,141.80

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Solution

The fourth proportional to 284,079.40, 425,600.70 and 173,141.80 is: 259,396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,079.40 : 425,600.70 = 173,141.80 : x
  2. Step 2: Convert to fraction form
    284,079.40/425,600.70 = 173,141.80/x
  3. Step 3: Cross multiply
    284,079.40x = 425,600.70 × 173,141.80
  4. Step 4: Simplify right side
    284,079.40x = 73,689,271,279.26
  5. Step 5: Solve for x
    x = 73,689,271,279.26/284,079.40
  6. Step 6: Final answer
    x = 259,396.74

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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.