Home / 492,278.78-738,418.08-118,301.78

Finding the Fourth Proportional to 492,278.78, 738,418.08 and 118,301.78

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Solution

The fourth proportional to 492,278.78, 738,418.08 and 118,301.78 is: 177,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,278.78 : 738,418.08 = 118,301.78 : x
  2. Step 2: Convert to fraction form
    492,278.78/738,418.08 = 118,301.78/x
  3. Step 3: Cross multiply
    492,278.78x = 738,418.08 × 118,301.78
  4. Step 4: Simplify right side
    492,278.78x = 87,356,173,248.18
  5. Step 5: Solve for x
    x = 87,356,173,248.18/492,278.78
  6. Step 6: Final answer
    x = 177,452.65

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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.