Home / 256,884.43-385,231.06-88,357.45

Finding the Fourth Proportional to 256,884.43, 385,231.06 and 88,357.45

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Solution

The fourth proportional to 256,884.43, 385,231.06 and 88,357.45 is: 132,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,884.43 : 385,231.06 = 88,357.45 : x
  2. Step 2: Convert to fraction form
    256,884.43/385,231.06 = 88,357.45/x
  3. Step 3: Cross multiply
    256,884.43x = 385,231.06 × 88,357.45
  4. Step 4: Simplify right side
    256,884.43x = 34,038,034,122.40
  5. Step 5: Solve for x
    x = 34,038,034,122.40/256,884.43
  6. Step 6: Final answer
    x = 132,503.30

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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.