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Finding the Fourth Proportional to 207,414.80, 310,603.80 and 136,912.40

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Solution

The fourth proportional to 207,414.80, 310,603.80 and 136,912.40 is: 205,026.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,414.80 : 310,603.80 = 136,912.40 : x
  2. Step 2: Convert to fraction form
    207,414.80/310,603.80 = 136,912.40/x
  3. Step 3: Cross multiply
    207,414.80x = 310,603.80 × 136,912.40
  4. Step 4: Simplify right side
    207,414.80x = 42,525,511,707.12
  5. Step 5: Solve for x
    x = 42,525,511,707.12/207,414.80
  6. Step 6: Final answer
    x = 205,026.41

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1.5x scale

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.