Home / 278,200.41-383,937.18-155,705.04

Finding the Fourth Proportional to 278,200.41, 383,937.18 and 155,705.04

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Solution

The fourth proportional to 278,200.41, 383,937.18 and 155,705.04 is: 214,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,200.41 : 383,937.18 = 155,705.04 : x
  2. Step 2: Convert to fraction form
    278,200.41/383,937.18 = 155,705.04/x
  3. Step 3: Cross multiply
    278,200.41x = 383,937.18 × 155,705.04
  4. Step 4: Simplify right side
    278,200.41x = 59,780,953,969.39
  5. Step 5: Solve for x
    x = 59,780,953,969.39/278,200.41
  6. Step 6: Final answer
    x = 214,884.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.