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Finding the Fourth Proportional to 242,418.71, 334,543.22 and 134,998.74

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Solution

The fourth proportional to 242,418.71, 334,543.22 and 134,998.74 is: 186,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,418.71 : 334,543.22 = 134,998.74 : x
  2. Step 2: Convert to fraction form
    242,418.71/334,543.22 = 134,998.74/x
  3. Step 3: Cross multiply
    242,418.71x = 334,543.22 × 134,998.74
  4. Step 4: Simplify right side
    242,418.71x = 45,162,912,500.55
  5. Step 5: Solve for x
    x = 45,162,912,500.55/242,418.71
  6. Step 6: Final answer
    x = 186,301.27

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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.