Home / 284,581.62-392,722.77-157,257.21

Finding the Fourth Proportional to 284,581.62, 392,722.77 and 157,257.21

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Solution

The fourth proportional to 284,581.62, 392,722.77 and 157,257.21 is: 217,015.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,581.62 : 392,722.77 = 157,257.21 : x
  2. Step 2: Convert to fraction form
    284,581.62/392,722.77 = 157,257.21/x
  3. Step 3: Cross multiply
    284,581.62x = 392,722.77 × 157,257.21
  4. Step 4: Simplify right side
    284,581.62x = 61,758,487,113.67
  5. Step 5: Solve for x
    x = 61,758,487,113.67/284,581.62
  6. Step 6: Final answer
    x = 217,015.03

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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.