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Finding the Fourth Proportional to 309,811.56, 464,717.28 and 88,195.56

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Solution

The fourth proportional to 309,811.56, 464,717.28 and 88,195.56 is: 132,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,811.56 : 464,717.28 = 88,195.56 : x
  2. Step 2: Convert to fraction form
    309,811.56/464,717.28 = 88,195.56/x
  3. Step 3: Cross multiply
    309,811.56x = 464,717.28 × 88,195.56
  4. Step 4: Simplify right side
    309,811.56x = 40,986,000,751.28
  5. Step 5: Solve for x
    x = 40,986,000,751.28/309,811.56
  6. Step 6: Final answer
    x = 132,293.32

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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.