Home / 657,100.42-985,705.94-207,811.31

Finding the Fourth Proportional to 657,100.42, 985,705.94 and 207,811.31

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Solution

The fourth proportional to 657,100.42, 985,705.94 and 207,811.31 is: 311,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,100.42 : 985,705.94 = 207,811.31 : x
  2. Step 2: Convert to fraction form
    657,100.42/985,705.94 = 207,811.31/x
  3. Step 3: Cross multiply
    657,100.42x = 985,705.94 × 207,811.31
  4. Step 4: Simplify right side
    657,100.42x = 204,840,838,257.18
  5. Step 5: Solve for x
    x = 204,840,838,257.18/657,100.42
  6. Step 6: Final answer
    x = 311,734.45

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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.