Home / 201,680.40-302,520.60-154,441.20

Finding the Fourth Proportional to 201,680.40, 302,520.60 and 154,441.20

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Solution

The fourth proportional to 201,680.40, 302,520.60 and 154,441.20 is: 231,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,680.40 : 302,520.60 = 154,441.20 : x
  2. Step 2: Convert to fraction form
    201,680.40/302,520.60 = 154,441.20/x
  3. Step 3: Cross multiply
    201,680.40x = 302,520.60 × 154,441.20
  4. Step 4: Simplify right side
    201,680.40x = 46,721,644,488.72
  5. Step 5: Solve for x
    x = 46,721,644,488.72/201,680.40
  6. Step 6: Final answer
    x = 231,661.80

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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.