Home / 256,057.30-384,135.39-98,273.45

Finding the Fourth Proportional to 256,057.30, 384,135.39 and 98,273.45

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Solution

The fourth proportional to 256,057.30, 384,135.39 and 98,273.45 is: 147,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,057.30 : 384,135.39 = 98,273.45 : x
  2. Step 2: Convert to fraction form
    256,057.30/384,135.39 = 98,273.45/x
  3. Step 3: Cross multiply
    256,057.30x = 384,135.39 × 98,273.45
  4. Step 4: Simplify right side
    256,057.30x = 37,750,310,726.34
  5. Step 5: Solve for x
    x = 37,750,310,726.34/256,057.30
  6. Step 6: Final answer
    x = 147,429.15

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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.