Home / 278,500.65-417,926.66-118,576.49

Finding the Fourth Proportional to 278,500.65, 417,926.66 and 118,576.49

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Solution

The fourth proportional to 278,500.65, 417,926.66 and 118,576.49 is: 177,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,500.65 : 417,926.66 = 118,576.49 : x
  2. Step 2: Convert to fraction form
    278,500.65/417,926.66 = 118,576.49/x
  3. Step 3: Cross multiply
    278,500.65x = 417,926.66 × 118,576.49
  4. Step 4: Simplify right side
    278,500.65x = 49,556,275,827.34
  5. Step 5: Solve for x
    x = 49,556,275,827.34/278,500.65
  6. Step 6: Final answer
    x = 177,939.53

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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.