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Finding the Fourth Proportional to 312,504.68, 468,132.66 and 143,793.69

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Solution

The fourth proportional to 312,504.68, 468,132.66 and 143,793.69 is: 215,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,504.68 : 468,132.66 = 143,793.69 : x
  2. Step 2: Convert to fraction form
    312,504.68/468,132.66 = 143,793.69/x
  3. Step 3: Cross multiply
    312,504.68x = 468,132.66 × 143,793.69
  4. Step 4: Simplify right side
    312,504.68x = 67,314,522,590.92
  5. Step 5: Solve for x
    x = 67,314,522,590.92/312,504.68
  6. Step 6: Final answer
    x = 215,403.25

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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.