Home / 222,475.12-307,020.56-126,979.84

Finding the Fourth Proportional to 222,475.12, 307,020.56 and 126,979.84

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Solution

The fourth proportional to 222,475.12, 307,020.56 and 126,979.84 is: 175,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,475.12 : 307,020.56 = 126,979.84 : x
  2. Step 2: Convert to fraction form
    222,475.12/307,020.56 = 126,979.84/x
  3. Step 3: Cross multiply
    222,475.12x = 307,020.56 × 126,979.84
  4. Step 4: Simplify right side
    222,475.12x = 38,985,421,585.51
  5. Step 5: Solve for x
    x = 38,985,421,585.51/222,475.12
  6. Step 6: Final answer
    x = 175,234.97

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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.