Home / 230,878.25-318,665.03-135,415.70

Finding the Fourth Proportional to 230,878.25, 318,665.03 and 135,415.70

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Solution

The fourth proportional to 230,878.25, 318,665.03 and 135,415.70 is: 186,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,878.25 : 318,665.03 = 135,415.70 : x
  2. Step 2: Convert to fraction form
    230,878.25/318,665.03 = 135,415.70/x
  3. Step 3: Cross multiply
    230,878.25x = 318,665.03 × 135,415.70
  4. Step 4: Simplify right side
    230,878.25x = 43,152,247,425.89
  5. Step 5: Solve for x
    x = 43,152,247,425.89/230,878.25
  6. Step 6: Final answer
    x = 186,904.78

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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.