Home / 216,580.40-298,973.08-131,724.72

Finding the Fourth Proportional to 216,580.40, 298,973.08 and 131,724.72

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Solution

The fourth proportional to 216,580.40, 298,973.08 and 131,724.72 is: 181,836.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,580.40 : 298,973.08 = 131,724.72 : x
  2. Step 2: Convert to fraction form
    216,580.40/298,973.08 = 131,724.72/x
  3. Step 3: Cross multiply
    216,580.40x = 298,973.08 × 131,724.72
  4. Step 4: Simplify right side
    216,580.40x = 39,382,145,250.54
  5. Step 5: Solve for x
    x = 39,382,145,250.54/216,580.40
  6. Step 6: Final answer
    x = 181,836.15

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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.