Home / 224,246.96-309,447.24-128,744.72

Finding the Fourth Proportional to 224,246.96, 309,447.24 and 128,744.72

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Solution

The fourth proportional to 224,246.96, 309,447.24 and 128,744.72 is: 177,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,246.96 : 309,447.24 = 128,744.72 : x
  2. Step 2: Convert to fraction form
    224,246.96/309,447.24 = 128,744.72/x
  3. Step 3: Cross multiply
    224,246.96x = 309,447.24 × 128,744.72
  4. Step 4: Simplify right side
    224,246.96x = 39,839,698,268.57
  5. Step 5: Solve for x
    x = 39,839,698,268.57/224,246.96
  6. Step 6: Final answer
    x = 177,659.93

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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.