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Finding the Fourth Proportional to 242,471.68, 334,621.28 and 135,041.69

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Solution

The fourth proportional to 242,471.68, 334,621.28 and 135,041.69 is: 186,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,471.68 : 334,621.28 = 135,041.69 : x
  2. Step 2: Convert to fraction form
    242,471.68/334,621.28 = 135,041.69/x
  3. Step 3: Cross multiply
    242,471.68x = 334,621.28 × 135,041.69
  4. Step 4: Simplify right side
    242,471.68x = 45,187,823,161.16
  5. Step 5: Solve for x
    x = 45,187,823,161.16/242,471.68
  6. Step 6: Final answer
    x = 186,363.30

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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.