Home / 230,434.82-318,001.37-128,466.75

Finding the Fourth Proportional to 230,434.82, 318,001.37 and 128,466.75

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Solution

The fourth proportional to 230,434.82, 318,001.37 and 128,466.75 is: 177,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,434.82 : 318,001.37 = 128,466.75 : x
  2. Step 2: Convert to fraction form
    230,434.82/318,001.37 = 128,466.75/x
  3. Step 3: Cross multiply
    230,434.82x = 318,001.37 × 128,466.75
  4. Step 4: Simplify right side
    230,434.82x = 40,852,601,857.11
  5. Step 5: Solve for x
    x = 40,852,601,857.11/230,434.82
  6. Step 6: Final answer
    x = 177,284.85

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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.