Home / 395,209.24-545,399.36-240,107.74

Finding the Fourth Proportional to 395,209.24, 545,399.36 and 240,107.74

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Solution

The fourth proportional to 395,209.24, 545,399.36 and 240,107.74 is: 331,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,209.24 : 545,399.36 = 240,107.74 : x
  2. Step 2: Convert to fraction form
    395,209.24/545,399.36 = 240,107.74/x
  3. Step 3: Cross multiply
    395,209.24x = 545,399.36 × 240,107.74
  4. Step 4: Simplify right side
    395,209.24x = 130,954,609,131.29
  5. Step 5: Solve for x
    x = 130,954,609,131.29/395,209.24
  6. Step 6: Final answer
    x = 331,355.13

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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.