Home / 256,276.16-384,331.20-85,452.48

Finding the Fourth Proportional to 256,276.16, 384,331.20 and 85,452.48

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Solution

The fourth proportional to 256,276.16, 384,331.20 and 85,452.48 is: 128,151.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,276.16 : 384,331.20 = 85,452.48 : x
  2. Step 2: Convert to fraction form
    256,276.16/384,331.20 = 85,452.48/x
  3. Step 3: Cross multiply
    256,276.16x = 384,331.20 × 85,452.48
  4. Step 4: Simplify right side
    256,276.16x = 32,842,054,181.38
  5. Step 5: Solve for x
    x = 32,842,054,181.38/256,276.16
  6. Step 6: Final answer
    x = 128,151.03

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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.