Home / 240,197.77-331,439.05-136,834.68

Finding the Fourth Proportional to 240,197.77, 331,439.05 and 136,834.68

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Solution

The fourth proportional to 240,197.77, 331,439.05 and 136,834.68 is: 188,812.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,197.77 : 331,439.05 = 136,834.68 : x
  2. Step 2: Convert to fraction form
    240,197.77/331,439.05 = 136,834.68/x
  3. Step 3: Cross multiply
    240,197.77x = 331,439.05 × 136,834.68
  4. Step 4: Simplify right side
    240,197.77x = 45,352,356,832.76
  5. Step 5: Solve for x
    x = 45,352,356,832.76/240,197.77
  6. Step 6: Final answer
    x = 188,812.56

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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.