Home / 284,446.36-392,531.90-155,383.30

Finding the Fourth Proportional to 284,446.36, 392,531.90 and 155,383.30

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Solution

The fourth proportional to 284,446.36, 392,531.90 and 155,383.30 is: 214,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,446.36 : 392,531.90 = 155,383.30 : x
  2. Step 2: Convert to fraction form
    284,446.36/392,531.90 = 155,383.30/x
  3. Step 3: Cross multiply
    284,446.36x = 392,531.90 × 155,383.30
  4. Step 4: Simplify right side
    284,446.36x = 60,992,899,237.69
  5. Step 5: Solve for x
    x = 60,992,899,237.69/284,446.36
  6. Step 6: Final answer
    x = 214,426.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.