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Finding the Fourth Proportional to 206,692.40, 310,038.60 and 196,850.90

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Solution

The fourth proportional to 206,692.40, 310,038.60 and 196,850.90 is: 295,276.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,692.40 : 310,038.60 = 196,850.90 : x
  2. Step 2: Convert to fraction form
    206,692.40/310,038.60 = 196,850.90/x
  3. Step 3: Cross multiply
    206,692.40x = 310,038.60 × 196,850.90
  4. Step 4: Simplify right side
    206,692.40x = 61,031,377,444.74
  5. Step 5: Solve for x
    x = 61,031,377,444.74/206,692.40
  6. Step 6: Final answer
    x = 295,276.35

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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.