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Finding the Fourth Proportional to 312,237.90, 468,358.08 and 75,580.20

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Solution

The fourth proportional to 312,237.90, 468,358.08 and 75,580.20 is: 113,370.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,237.90 : 468,358.08 = 75,580.20 : x
  2. Step 2: Convert to fraction form
    312,237.90/468,358.08 = 75,580.20/x
  3. Step 3: Cross multiply
    312,237.90x = 468,358.08 × 75,580.20
  4. Step 4: Simplify right side
    312,237.90x = 35,398,597,358.02
  5. Step 5: Solve for x
    x = 35,398,597,358.02/312,237.90
  6. Step 6: Final answer
    x = 113,370.60

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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.