Home / 215,087.10-322,630.65-136,290.30

Finding the Fourth Proportional to 215,087.10, 322,630.65 and 136,290.30

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Solution

The fourth proportional to 215,087.10, 322,630.65 and 136,290.30 is: 204,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,087.10 : 322,630.65 = 136,290.30 : x
  2. Step 2: Convert to fraction form
    215,087.10/322,630.65 = 136,290.30/x
  3. Step 3: Cross multiply
    215,087.10x = 322,630.65 × 136,290.30
  4. Step 4: Simplify right side
    215,087.10x = 43,971,428,077.70
  5. Step 5: Solve for x
    x = 43,971,428,077.70/215,087.10
  6. Step 6: Final answer
    x = 204,435.45

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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.