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Finding the Fourth Proportional to 209,179.79, 288,569.48 and 151,692.97

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Solution

The fourth proportional to 209,179.79, 288,569.48 and 151,692.97 is: 209,264.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,179.79 : 288,569.48 = 151,692.97 : x
  2. Step 2: Convert to fraction form
    209,179.79/288,569.48 = 151,692.97/x
  3. Step 3: Cross multiply
    209,179.79x = 288,569.48 × 151,692.97
  4. Step 4: Simplify right side
    209,179.79x = 43,773,961,472.56
  5. Step 5: Solve for x
    x = 43,773,961,472.56/209,179.79
  6. Step 6: Final answer
    x = 209,264.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.