Home / 207,862.03-311,013.01-123,312.61

Finding the Fourth Proportional to 207,862.03, 311,013.01 and 123,312.61

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Solution

The fourth proportional to 207,862.03, 311,013.01 and 123,312.61 is: 184,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,862.03 : 311,013.01 = 123,312.61 : x
  2. Step 2: Convert to fraction form
    207,862.03/311,013.01 = 123,312.61/x
  3. Step 3: Cross multiply
    207,862.03x = 311,013.01 × 123,312.61
  4. Step 4: Simplify right side
    207,862.03x = 38,351,823,835.43
  5. Step 5: Solve for x
    x = 38,351,823,835.43/207,862.03
  6. Step 6: Final answer
    x = 184,506.16

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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.