Home / 209,320.97-288,945.11-148,385.66

Finding the Fourth Proportional to 209,320.97, 288,945.11 and 148,385.66

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Solution

The fourth proportional to 209,320.97, 288,945.11 and 148,385.66 is: 204,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.97 : 288,945.11 = 148,385.66 : x
  2. Step 2: Convert to fraction form
    209,320.97/288,945.11 = 148,385.66/x
  3. Step 3: Cross multiply
    209,320.97x = 288,945.11 × 148,385.66
  4. Step 4: Simplify right side
    209,320.97x = 42,875,308,664.47
  5. Step 5: Solve for x
    x = 42,875,308,664.47/209,320.97
  6. Step 6: Final answer
    x = 204,830.46

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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.