Home / 256,572.20-384,275.10-131,767.40

Finding the Fourth Proportional to 256,572.20, 384,275.10 and 131,767.40

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Solution

The fourth proportional to 256,572.20, 384,275.10 and 131,767.40 is: 197,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,572.20 : 384,275.10 = 131,767.40 : x
  2. Step 2: Convert to fraction form
    256,572.20/384,275.10 = 131,767.40/x
  3. Step 3: Cross multiply
    256,572.20x = 384,275.10 × 131,767.40
  4. Step 4: Simplify right side
    256,572.20x = 50,634,930,811.74
  5. Step 5: Solve for x
    x = 50,634,930,811.74/256,572.20
  6. Step 6: Final answer
    x = 197,351.59

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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.