Home / 268,154.20-401,975.30-99,629.40

Finding the Fourth Proportional to 268,154.20, 401,975.30 and 99,629.40

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Solution

The fourth proportional to 268,154.20, 401,975.30 and 99,629.40 is: 149,348.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,154.20 : 401,975.30 = 99,629.40 : x
  2. Step 2: Convert to fraction form
    268,154.20/401,975.30 = 99,629.40/x
  3. Step 3: Cross multiply
    268,154.20x = 401,975.30 × 99,629.40
  4. Step 4: Simplify right side
    268,154.20x = 40,048,557,953.82
  5. Step 5: Solve for x
    x = 40,048,557,953.82/268,154.20
  6. Step 6: Final answer
    x = 149,348.99

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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.