Home / 257,144.07-385,741.47-88,642.23

Finding the Fourth Proportional to 257,144.07, 385,741.47 and 88,642.23

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Solution

The fourth proportional to 257,144.07, 385,741.47 and 88,642.23 is: 132,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,144.07 : 385,741.47 = 88,642.23 : x
  2. Step 2: Convert to fraction form
    257,144.07/385,741.47 = 88,642.23/x
  3. Step 3: Cross multiply
    257,144.07x = 385,741.47 × 88,642.23
  4. Step 4: Simplify right side
    257,144.07x = 34,192,984,104.28
  5. Step 5: Solve for x
    x = 34,192,984,104.28/257,144.07
  6. Step 6: Final answer
    x = 132,972.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.