Home / 278,317.62-384,097.34-157,458.87

Finding the Fourth Proportional to 278,317.62, 384,097.34 and 157,458.87

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Solution

The fourth proportional to 278,317.62, 384,097.34 and 157,458.87 is: 217,304.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,317.62 : 384,097.34 = 157,458.87 : x
  2. Step 2: Convert to fraction form
    278,317.62/384,097.34 = 157,458.87/x
  3. Step 3: Cross multiply
    278,317.62x = 384,097.34 × 157,458.87
  4. Step 4: Simplify right side
    278,317.62x = 60,479,535,140.47
  5. Step 5: Solve for x
    x = 60,479,535,140.47/278,317.62
  6. Step 6: Final answer
    x = 217,304.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.