Home / 278,117.48-416,928.80-100,585.02

Finding the Fourth Proportional to 278,117.48, 416,928.80 and 100,585.02

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Solution

The fourth proportional to 278,117.48, 416,928.80 and 100,585.02 is: 150,788.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,117.48 : 416,928.80 = 100,585.02 : x
  2. Step 2: Convert to fraction form
    278,117.48/416,928.80 = 100,585.02/x
  3. Step 3: Cross multiply
    278,117.48x = 416,928.80 × 100,585.02
  4. Step 4: Simplify right side
    278,117.48x = 41,936,791,686.58
  5. Step 5: Solve for x
    x = 41,936,791,686.58/278,117.48
  6. Step 6: Final answer
    x = 150,788.05

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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.