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Finding the Fourth Proportional to 242,138.49, 363,209.55 and 84,366.69

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Solution

The fourth proportional to 242,138.49, 363,209.55 and 84,366.69 is: 126,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,138.49 : 363,209.55 = 84,366.69 : x
  2. Step 2: Convert to fraction form
    242,138.49/363,209.55 = 84,366.69/x
  3. Step 3: Cross multiply
    242,138.49x = 363,209.55 × 84,366.69
  4. Step 4: Simplify right side
    242,138.49x = 30,642,787,509.89
  5. Step 5: Solve for x
    x = 30,642,787,509.89/242,138.49
  6. Step 6: Final answer
    x = 126,550.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.