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Finding the Fourth Proportional to 284,380.36, 426,648.47 and 124,427.30

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Solution

The fourth proportional to 284,380.36, 426,648.47 and 124,427.30 is: 186,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,380.36 : 426,648.47 = 124,427.30 : x
  2. Step 2: Convert to fraction form
    284,380.36/426,648.47 = 124,427.30/x
  3. Step 3: Cross multiply
    284,380.36x = 426,648.47 × 124,427.30
  4. Step 4: Simplify right side
    284,380.36x = 53,086,716,715.69
  5. Step 5: Solve for x
    x = 53,086,716,715.69/284,380.36
  6. Step 6: Final answer
    x = 186,675.04

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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.