Home / 278,680.02-417,913.05-118,654.49

Finding the Fourth Proportional to 278,680.02, 417,913.05 and 118,654.49

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Solution

The fourth proportional to 278,680.02, 417,913.05 and 118,654.49 is: 177,936.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,680.02 : 417,913.05 = 118,654.49 : x
  2. Step 2: Convert to fraction form
    278,680.02/417,913.05 = 118,654.49/x
  3. Step 3: Cross multiply
    278,680.02x = 417,913.05 × 118,654.49
  4. Step 4: Simplify right side
    278,680.02x = 49,587,259,812.09
  5. Step 5: Solve for x
    x = 49,587,259,812.09/278,680.02
  6. Step 6: Final answer
    x = 177,936.19

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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.