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Finding the Fourth Proportional to 288,776.24, 398,498.04 and 159,715.88

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Solution

The fourth proportional to 288,776.24, 398,498.04 and 159,715.88 is: 220,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,776.24 : 398,498.04 = 159,715.88 : x
  2. Step 2: Convert to fraction form
    288,776.24/398,498.04 = 159,715.88/x
  3. Step 3: Cross multiply
    288,776.24x = 398,498.04 × 159,715.88
  4. Step 4: Simplify right side
    288,776.24x = 63,646,463,144.39
  5. Step 5: Solve for x
    x = 63,646,463,144.39/288,776.24
  6. Step 6: Final answer
    x = 220,400.63

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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.