Home / 278,381.46-417,200.40-144,982.02

Finding the Fourth Proportional to 278,381.46, 417,200.40 and 144,982.02

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Solution

The fourth proportional to 278,381.46, 417,200.40 and 144,982.02 is: 217,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,381.46 : 417,200.40 = 144,982.02 : x
  2. Step 2: Convert to fraction form
    278,381.46/417,200.40 = 144,982.02/x
  3. Step 3: Cross multiply
    278,381.46x = 417,200.40 × 144,982.02
  4. Step 4: Simplify right side
    278,381.46x = 60,486,556,736.81
  5. Step 5: Solve for x
    x = 60,486,556,736.81/278,381.46
  6. Step 6: Final answer
    x = 217,279.40

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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.