Home / 355,877.12-491,117.28-194,742.56

Finding the Fourth Proportional to 355,877.12, 491,117.28 and 194,742.56

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Solution

The fourth proportional to 355,877.12, 491,117.28 and 194,742.56 is: 268,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,877.12 : 491,117.28 = 194,742.56 : x
  2. Step 2: Convert to fraction form
    355,877.12/491,117.28 = 194,742.56/x
  3. Step 3: Cross multiply
    355,877.12x = 491,117.28 × 194,742.56
  4. Step 4: Simplify right side
    355,877.12x = 95,641,436,367.44
  5. Step 5: Solve for x
    x = 95,641,436,367.44/355,877.12
  6. Step 6: Final answer
    x = 268,748.48

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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.