Home / 217,427.40-325,703.70-123,823.80

Finding the Fourth Proportional to 217,427.40, 325,703.70 and 123,823.80

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Solution

The fourth proportional to 217,427.40, 325,703.70 and 123,823.80 is: 185,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,427.40 : 325,703.70 = 123,823.80 : x
  2. Step 2: Convert to fraction form
    217,427.40/325,703.70 = 123,823.80/x
  3. Step 3: Cross multiply
    217,427.40x = 325,703.70 × 123,823.80
  4. Step 4: Simplify right side
    217,427.40x = 40,329,869,808.06
  5. Step 5: Solve for x
    x = 40,329,869,808.06/217,427.40
  6. Step 6: Final answer
    x = 185,486.60

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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.