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Finding the Fourth Proportional to 299,501.28, 413,320.29 and 163,543.86

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Solution

The fourth proportional to 299,501.28, 413,320.29 and 163,543.86 is: 225,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,501.28 : 413,320.29 = 163,543.86 : x
  2. Step 2: Convert to fraction form
    299,501.28/413,320.29 = 163,543.86/x
  3. Step 3: Cross multiply
    299,501.28x = 413,320.29 × 163,543.86
  4. Step 4: Simplify right side
    299,501.28x = 67,595,995,642.92
  5. Step 5: Solve for x
    x = 67,595,995,642.92/299,501.28
  6. Step 6: Final answer
    x = 225,695.18

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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.