Home / 261,870.15-361,381.19-148,692.90

Finding the Fourth Proportional to 261,870.15, 361,381.19 and 148,692.90

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Solution

The fourth proportional to 261,870.15, 361,381.19 and 148,692.90 is: 205,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,870.15 : 361,381.19 = 148,692.90 : x
  2. Step 2: Convert to fraction form
    261,870.15/361,381.19 = 148,692.90/x
  3. Step 3: Cross multiply
    261,870.15x = 361,381.19 × 148,692.90
  4. Step 4: Simplify right side
    261,870.15x = 53,734,816,403.09
  5. Step 5: Solve for x
    x = 53,734,816,403.09/261,870.15
  6. Step 6: Final answer
    x = 205,196.42

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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.