Home / 268,343.78-370,321.20-147,488.14

Finding the Fourth Proportional to 268,343.78, 370,321.20 and 147,488.14

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Solution

The fourth proportional to 268,343.78, 370,321.20 and 147,488.14 is: 203,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,343.78 : 370,321.20 = 147,488.14 : x
  2. Step 2: Convert to fraction form
    268,343.78/370,321.20 = 147,488.14/x
  3. Step 3: Cross multiply
    268,343.78x = 370,321.20 × 147,488.14
  4. Step 4: Simplify right side
    268,343.78x = 54,617,984,990.57
  5. Step 5: Solve for x
    x = 54,617,984,990.57/268,343.78
  6. Step 6: Final answer
    x = 203,537.36

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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.