Home / 278,369.28-384,022.08-165,150.72

Finding the Fourth Proportional to 278,369.28, 384,022.08 and 165,150.72

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Solution

The fourth proportional to 278,369.28, 384,022.08 and 165,150.72 is: 227,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,369.28 : 384,022.08 = 165,150.72 : x
  2. Step 2: Convert to fraction form
    278,369.28/384,022.08 = 165,150.72/x
  3. Step 3: Cross multiply
    278,369.28x = 384,022.08 × 165,150.72
  4. Step 4: Simplify right side
    278,369.28x = 63,421,523,007.90
  5. Step 5: Solve for x
    x = 63,421,523,007.90/278,369.28
  6. Step 6: Final answer
    x = 227,832.33

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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.