Home / 256,417.11-353,783.55-147,515.76

Finding the Fourth Proportional to 256,417.11, 353,783.55 and 147,515.76

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Solution

The fourth proportional to 256,417.11, 353,783.55 and 147,515.76 is: 203,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,417.11 : 353,783.55 = 147,515.76 : x
  2. Step 2: Convert to fraction form
    256,417.11/353,783.55 = 147,515.76/x
  3. Step 3: Cross multiply
    256,417.11x = 353,783.55 × 147,515.76
  4. Step 4: Simplify right side
    256,417.11x = 52,188,649,253.75
  5. Step 5: Solve for x
    x = 52,188,649,253.75/256,417.11
  6. Step 6: Final answer
    x = 203,530.29

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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.