Home / 284,721.75-392,881.91-157,380.03

Finding the Fourth Proportional to 284,721.75, 392,881.91 and 157,380.03

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Solution

The fourth proportional to 284,721.75, 392,881.91 and 157,380.03 is: 217,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,721.75 : 392,881.91 = 157,380.03 : x
  2. Step 2: Convert to fraction form
    284,721.75/392,881.91 = 157,380.03/x
  3. Step 3: Cross multiply
    284,721.75x = 392,881.91 × 157,380.03
  4. Step 4: Simplify right side
    284,721.75x = 61,831,765,995.36
  5. Step 5: Solve for x
    x = 61,831,765,995.36/284,721.75
  6. Step 6: Final answer
    x = 217,165.59

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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.