Home / 278,161.59-417,317.28-143,152.11

Finding the Fourth Proportional to 278,161.59, 417,317.28 and 143,152.11

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Solution

The fourth proportional to 278,161.59, 417,317.28 and 143,152.11 is: 214,766.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,161.59 : 417,317.28 = 143,152.11 : x
  2. Step 2: Convert to fraction form
    278,161.59/417,317.28 = 143,152.11/x
  3. Step 3: Cross multiply
    278,161.59x = 417,317.28 × 143,152.11
  4. Step 4: Simplify right side
    278,161.59x = 59,739,849,171.46
  5. Step 5: Solve for x
    x = 59,739,849,171.46/278,161.59
  6. Step 6: Final answer
    x = 214,766.71

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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.