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Finding the Fourth Proportional to 312,627.72, 468,940 and 75,971.08

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Solution

The fourth proportional to 312,627.72, 468,940 and 75,971.08 is: 113,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,627.72 : 468,940 = 75,971.08 : x
  2. Step 2: Convert to fraction form
    312,627.72/468,940 = 75,971.08/x
  3. Step 3: Cross multiply
    312,627.72x = 468,940 × 75,971.08
  4. Step 4: Simplify right side
    312,627.72x = 35,625,878,255.20
  5. Step 5: Solve for x
    x = 35,625,878,255.20/312,627.72
  6. Step 6: Final answer
    x = 113,956.24

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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.