Home / 278,719.62-384,633.45-151,395.24

Finding the Fourth Proportional to 278,719.62, 384,633.45 and 151,395.24

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Solution

The fourth proportional to 278,719.62, 384,633.45 and 151,395.24 is: 208,925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,719.62 : 384,633.45 = 151,395.24 : x
  2. Step 2: Convert to fraction form
    278,719.62/384,633.45 = 151,395.24/x
  3. Step 3: Cross multiply
    278,719.62x = 384,633.45 × 151,395.24
  4. Step 4: Simplify right side
    278,719.62x = 58,231,673,474.78
  5. Step 5: Solve for x
    x = 58,231,673,474.78/278,719.62
  6. Step 6: Final answer
    x = 208,925.63

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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.