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Finding the Fourth Proportional to 354,499.70, 531,749.55 and 88,258.10

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Solution

The fourth proportional to 354,499.70, 531,749.55 and 88,258.10 is: 132,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,499.70 : 531,749.55 = 88,258.10 : x
  2. Step 2: Convert to fraction form
    354,499.70/531,749.55 = 88,258.10/x
  3. Step 3: Cross multiply
    354,499.70x = 531,749.55 × 88,258.10
  4. Step 4: Simplify right side
    354,499.70x = 46,931,204,958.86
  5. Step 5: Solve for x
    x = 46,931,204,958.86/354,499.70
  6. Step 6: Final answer
    x = 132,387.15

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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.