Home / 268,178.07-402,260.88-135,022.58

Finding the Fourth Proportional to 268,178.07, 402,260.88 and 135,022.58

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Solution

The fourth proportional to 268,178.07, 402,260.88 and 135,022.58 is: 202,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,178.07 : 402,260.88 = 135,022.58 : x
  2. Step 2: Convert to fraction form
    268,178.07/402,260.88 = 135,022.58/x
  3. Step 3: Cross multiply
    268,178.07x = 402,260.88 × 135,022.58
  4. Step 4: Simplify right side
    268,178.07x = 54,314,301,854.18
  5. Step 5: Solve for x
    x = 54,314,301,854.18/268,178.07
  6. Step 6: Final answer
    x = 202,530.73

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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.