Home / 309,948.13-427,713.64-173,965.33

Finding the Fourth Proportional to 309,948.13, 427,713.64 and 173,965.33

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Solution

The fourth proportional to 309,948.13, 427,713.64 and 173,965.33 is: 240,063.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,948.13 : 427,713.64 = 173,965.33 : x
  2. Step 2: Convert to fraction form
    309,948.13/427,713.64 = 173,965.33/x
  3. Step 3: Cross multiply
    309,948.13x = 427,713.64 × 173,965.33
  4. Step 4: Simplify right side
    309,948.13x = 74,407,344,528.10
  5. Step 5: Solve for x
    x = 74,407,344,528.10/309,948.13
  6. Step 6: Final answer
    x = 240,063.86

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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.