Home / 230,939.52-318,744-135,496.32

Finding the Fourth Proportional to 230,939.52, 318,744 and 135,496.32

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Solution

The fourth proportional to 230,939.52, 318,744 and 135,496.32 is: 187,012.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,939.52 : 318,744 = 135,496.32 : x
  2. Step 2: Convert to fraction form
    230,939.52/318,744 = 135,496.32/x
  3. Step 3: Cross multiply
    230,939.52x = 318,744 × 135,496.32
  4. Step 4: Simplify right side
    230,939.52x = 43,188,639,022.08
  5. Step 5: Solve for x
    x = 43,188,639,022.08/230,939.52
  6. Step 6: Final answer
    x = 187,012.77

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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.