Home / 202,117.12-278,771.20-148,385.28

Finding the Fourth Proportional to 202,117.12, 278,771.20 and 148,385.28

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Solution

The fourth proportional to 202,117.12, 278,771.20 and 148,385.28 is: 204,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,117.12 : 278,771.20 = 148,385.28 : x
  2. Step 2: Convert to fraction form
    202,117.12/278,771.20 = 148,385.28/x
  3. Step 3: Cross multiply
    202,117.12x = 278,771.20 × 148,385.28
  4. Step 4: Simplify right side
    202,117.12x = 41,365,542,567.94
  5. Step 5: Solve for x
    x = 41,365,542,567.94/202,117.12
  6. Step 6: Final answer
    x = 204,661.25

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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.