Home / 278,443.53-384,252.20-151,119.12

Finding the Fourth Proportional to 278,443.53, 384,252.20 and 151,119.12

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Solution

The fourth proportional to 278,443.53, 384,252.20 and 151,119.12 is: 208,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,443.53 : 384,252.20 = 151,119.12 : x
  2. Step 2: Convert to fraction form
    278,443.53/384,252.20 = 151,119.12/x
  3. Step 3: Cross multiply
    278,443.53x = 384,252.20 × 151,119.12
  4. Step 4: Simplify right side
    278,443.53x = 58,067,853,566.47
  5. Step 5: Solve for x
    x = 58,067,853,566.47/278,443.53
  6. Step 6: Final answer
    x = 208,544.45

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1.5x scale

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.