Home / 230,979.89-318,743.25-144,985.07

Finding the Fourth Proportional to 230,979.89, 318,743.25 and 144,985.07

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Solution

The fourth proportional to 230,979.89, 318,743.25 and 144,985.07 is: 200,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,979.89 : 318,743.25 = 144,985.07 : x
  2. Step 2: Convert to fraction form
    230,979.89/318,743.25 = 144,985.07/x
  3. Step 3: Cross multiply
    230,979.89x = 318,743.25 × 144,985.07
  4. Step 4: Simplify right side
    230,979.89x = 46,213,012,413.28
  5. Step 5: Solve for x
    x = 46,213,012,413.28/230,979.89
  6. Step 6: Final answer
    x = 200,073.75

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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.