Home / 252,179.10-378,268.65-145,890.90

Finding the Fourth Proportional to 252,179.10, 378,268.65 and 145,890.90

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Solution

The fourth proportional to 252,179.10, 378,268.65 and 145,890.90 is: 218,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,179.10 : 378,268.65 = 145,890.90 : x
  2. Step 2: Convert to fraction form
    252,179.10/378,268.65 = 145,890.90/x
  3. Step 3: Cross multiply
    252,179.10x = 378,268.65 × 145,890.90
  4. Step 4: Simplify right side
    252,179.10x = 55,185,953,790.29
  5. Step 5: Solve for x
    x = 55,185,953,790.29/252,179.10
  6. Step 6: Final answer
    x = 218,836.35

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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.