Home / 288,343.10-397,924.73-159,288.23

Finding the Fourth Proportional to 288,343.10, 397,924.73 and 159,288.23

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Solution

The fourth proportional to 288,343.10, 397,924.73 and 159,288.23 is: 219,823.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,343.10 : 397,924.73 = 159,288.23 : x
  2. Step 2: Convert to fraction form
    288,343.10/397,924.73 = 159,288.23/x
  3. Step 3: Cross multiply
    288,343.10x = 397,924.73 × 159,288.23
  4. Step 4: Simplify right side
    288,343.10x = 63,384,723,128.86
  5. Step 5: Solve for x
    x = 63,384,723,128.86/288,343.10
  6. Step 6: Final answer
    x = 219,823.97

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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.