Home / 281,379.42-422,017.56-76,218.03

Finding the Fourth Proportional to 281,379.42, 422,017.56 and 76,218.03

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Solution

The fourth proportional to 281,379.42, 422,017.56 and 76,218.03 is: 114,313.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,379.42 : 422,017.56 = 76,218.03 : x
  2. Step 2: Convert to fraction form
    281,379.42/422,017.56 = 76,218.03/x
  3. Step 3: Cross multiply
    281,379.42x = 422,017.56 × 76,218.03
  4. Step 4: Simplify right side
    281,379.42x = 32,165,347,048.61
  5. Step 5: Solve for x
    x = 32,165,347,048.61/281,379.42
  6. Step 6: Final answer
    x = 114,313.08

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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.