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Finding the Fourth Proportional to 206,692.40, 310,038.60 and 88,375.70

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Solution

The fourth proportional to 206,692.40, 310,038.60 and 88,375.70 is: 132,563.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,692.40 : 310,038.60 = 88,375.70 : x
  2. Step 2: Convert to fraction form
    206,692.40/310,038.60 = 88,375.70/x
  3. Step 3: Cross multiply
    206,692.40x = 310,038.60 × 88,375.70
  4. Step 4: Simplify right side
    206,692.40x = 27,399,878,302.02
  5. Step 5: Solve for x
    x = 27,399,878,302.02/206,692.40
  6. Step 6: Final answer
    x = 132,563.55

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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.