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Finding the Fourth Proportional to 242,535.76, 334,709.43 and 135,105.76

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Solution

The fourth proportional to 242,535.76, 334,709.43 and 135,105.76 is: 186,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,535.76 : 334,709.43 = 135,105.76 : x
  2. Step 2: Convert to fraction form
    242,535.76/334,709.43 = 135,105.76/x
  3. Step 3: Cross multiply
    242,535.76x = 334,709.43 × 135,105.76
  4. Step 4: Simplify right side
    242,535.76x = 45,221,171,919.32
  5. Step 5: Solve for x
    x = 45,221,171,919.32/242,535.76
  6. Step 6: Final answer
    x = 186,451.56

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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.