Home / 284,581.05-392,721.99-157,256.65

Finding the Fourth Proportional to 284,581.05, 392,721.99 and 157,256.65

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Solution

The fourth proportional to 284,581.05, 392,721.99 and 157,256.65 is: 217,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,581.05 : 392,721.99 = 157,256.65 : x
  2. Step 2: Convert to fraction form
    284,581.05/392,721.99 = 157,256.65/x
  3. Step 3: Cross multiply
    284,581.05x = 392,721.99 × 157,256.65
  4. Step 4: Simplify right side
    284,581.05x = 61,758,143,105.43
  5. Step 5: Solve for x
    x = 61,758,143,105.43/284,581.05
  6. Step 6: Final answer
    x = 217,014.25

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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.