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Finding the Fourth Proportional to 239,794.20, 360,225.90 and 200,428.20

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Solution

The fourth proportional to 239,794.20, 360,225.90 and 200,428.20 is: 301,089.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,794.20 : 360,225.90 = 200,428.20 : x
  2. Step 2: Convert to fraction form
    239,794.20/360,225.90 = 200,428.20/x
  3. Step 3: Cross multiply
    239,794.20x = 360,225.90 × 200,428.20
  4. Step 4: Simplify right side
    239,794.20x = 72,199,428,730.38
  5. Step 5: Solve for x
    x = 72,199,428,730.38/239,794.20
  6. Step 6: Final answer
    x = 301,089.14

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1.5x scale

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.