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Finding the Fourth Proportional to 280,601.99, 387,358.22 and 178,767.10

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Solution

The fourth proportional to 280,601.99, 387,358.22 and 178,767.10 is: 246,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,601.99 : 387,358.22 = 178,767.10 : x
  2. Step 2: Convert to fraction form
    280,601.99/387,358.22 = 178,767.10/x
  3. Step 3: Cross multiply
    280,601.99x = 387,358.22 × 178,767.10
  4. Step 4: Simplify right side
    280,601.99x = 69,246,902,819.94
  5. Step 5: Solve for x
    x = 69,246,902,819.94/280,601.99
  6. Step 6: Final answer
    x = 246,779.80

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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.