Home / 284,122.98-392,087.25-155,064.06

Finding the Fourth Proportional to 284,122.98, 392,087.25 and 155,064.06

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Solution

The fourth proportional to 284,122.98, 392,087.25 and 155,064.06 is: 213,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,122.98 : 392,087.25 = 155,064.06 : x
  2. Step 2: Convert to fraction form
    284,122.98/392,087.25 = 155,064.06/x
  3. Step 3: Cross multiply
    284,122.98x = 392,087.25 × 155,064.06
  4. Step 4: Simplify right side
    284,122.98x = 60,798,640,859.24
  5. Step 5: Solve for x
    x = 60,798,640,859.24/284,122.98
  6. Step 6: Final answer
    x = 213,987.06

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1.5x scale

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.