Home / 209,988.98-314,760.64-103,222.38

Finding the Fourth Proportional to 209,988.98, 314,760.64 and 103,222.38

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Solution

The fourth proportional to 209,988.98, 314,760.64 and 103,222.38 is: 154,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,988.98 : 314,760.64 = 103,222.38 : x
  2. Step 2: Convert to fraction form
    209,988.98/314,760.64 = 103,222.38/x
  3. Step 3: Cross multiply
    209,988.98x = 314,760.64 × 103,222.38
  4. Step 4: Simplify right side
    209,988.98x = 32,490,342,391.12
  5. Step 5: Solve for x
    x = 32,490,342,391.12/209,988.98
  6. Step 6: Final answer
    x = 154,724.04

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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.