Home / 256,047.28-353,345.49-142,870.03

Finding the Fourth Proportional to 256,047.28, 353,345.49 and 142,870.03

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Solution

The fourth proportional to 256,047.28, 353,345.49 and 142,870.03 is: 197,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,047.28 : 353,345.49 = 142,870.03 : x
  2. Step 2: Convert to fraction form
    256,047.28/353,345.49 = 142,870.03/x
  3. Step 3: Cross multiply
    256,047.28x = 353,345.49 × 142,870.03
  4. Step 4: Simplify right side
    256,047.28x = 50,482,479,873.30
  5. Step 5: Solve for x
    x = 50,482,479,873.30/256,047.28
  6. Step 6: Final answer
    x = 197,160.78

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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.