Home / 309,974.11-427,764.04-174,008.32

Finding the Fourth Proportional to 309,974.11, 427,764.04 and 174,008.32

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Solution

The fourth proportional to 309,974.11, 427,764.04 and 174,008.32 is: 240,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,974.11 : 427,764.04 = 174,008.32 : x
  2. Step 2: Convert to fraction form
    309,974.11/427,764.04 = 174,008.32/x
  3. Step 3: Cross multiply
    309,974.11x = 427,764.04 × 174,008.32
  4. Step 4: Simplify right side
    309,974.11x = 74,434,500,452.38
  5. Step 5: Solve for x
    x = 74,434,500,452.38/309,974.11
  6. Step 6: Final answer
    x = 240,131.35

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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.