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Finding the Fourth Proportional to 312,279.68, 468,132.48 and 112,551.18

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Solution

The fourth proportional to 312,279.68, 468,132.48 and 112,551.18 is: 168,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,279.68 : 468,132.48 = 112,551.18 : x
  2. Step 2: Convert to fraction form
    312,279.68/468,132.48 = 112,551.18/x
  3. Step 3: Cross multiply
    312,279.68x = 468,132.48 × 112,551.18
  4. Step 4: Simplify right side
    312,279.68x = 52,688,863,020.33
  5. Step 5: Solve for x
    x = 52,688,863,020.33/312,279.68
  6. Step 6: Final answer
    x = 168,723.32

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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.