Home / 259,091.43-388,637.13-101,209.15

Finding the Fourth Proportional to 259,091.43, 388,637.13 and 101,209.15

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Solution

The fourth proportional to 259,091.43, 388,637.13 and 101,209.15 is: 151,813.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,091.43 : 388,637.13 = 101,209.15 : x
  2. Step 2: Convert to fraction form
    259,091.43/388,637.13 = 101,209.15/x
  3. Step 3: Cross multiply
    259,091.43x = 388,637.13 × 101,209.15
  4. Step 4: Simplify right side
    259,091.43x = 39,333,633,585.74
  5. Step 5: Solve for x
    x = 39,333,633,585.74/259,091.43
  6. Step 6: Final answer
    x = 151,813.72

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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.