Home / 232,257.81-320,440.08-135,439.83

Finding the Fourth Proportional to 232,257.81, 320,440.08 and 135,439.83

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Solution

The fourth proportional to 232,257.81, 320,440.08 and 135,439.83 is: 186,862.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,257.81 : 320,440.08 = 135,439.83 : x
  2. Step 2: Convert to fraction form
    232,257.81/320,440.08 = 135,439.83/x
  3. Step 3: Cross multiply
    232,257.81x = 320,440.08 × 135,439.83
  4. Step 4: Simplify right side
    232,257.81x = 43,400,349,960.39
  5. Step 5: Solve for x
    x = 43,400,349,960.39/232,257.81
  6. Step 6: Final answer
    x = 186,862.82

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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.