Home / 221,218.32-332,159.78-126,555.38

Finding the Fourth Proportional to 221,218.32, 332,159.78 and 126,555.38

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Solution

The fourth proportional to 221,218.32, 332,159.78 and 126,555.38 is: 190,023.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,218.32 : 332,159.78 = 126,555.38 : x
  2. Step 2: Convert to fraction form
    221,218.32/332,159.78 = 126,555.38/x
  3. Step 3: Cross multiply
    221,218.32x = 332,159.78 × 126,555.38
  4. Step 4: Simplify right side
    221,218.32x = 42,036,607,178.62
  5. Step 5: Solve for x
    x = 42,036,607,178.62/221,218.32
  6. Step 6: Final answer
    x = 190,023.17

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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.