Home / 216,204.09-298,486.11-143,705.25

Finding the Fourth Proportional to 216,204.09, 298,486.11 and 143,705.25

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Solution

The fourth proportional to 216,204.09, 298,486.11 and 143,705.25 is: 198,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,204.09 : 298,486.11 = 143,705.25 : x
  2. Step 2: Convert to fraction form
    216,204.09/298,486.11 = 143,705.25/x
  3. Step 3: Cross multiply
    216,204.09x = 298,486.11 × 143,705.25
  4. Step 4: Simplify right side
    216,204.09x = 42,894,021,059.08
  5. Step 5: Solve for x
    x = 42,894,021,059.08/216,204.09
  6. Step 6: Final answer
    x = 198,395.97

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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.