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Finding the Fourth Proportional to 200,424.49, 300,626.20 and 67,307.47

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Solution

The fourth proportional to 200,424.49, 300,626.20 and 67,307.47 is: 100,957.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,424.49 : 300,626.20 = 67,307.47 : x
  2. Step 2: Convert to fraction form
    200,424.49/300,626.20 = 67,307.47/x
  3. Step 3: Cross multiply
    200,424.49x = 300,626.20 × 67,307.47
  4. Step 4: Simplify right side
    200,424.49x = 20,234,388,937.71
  5. Step 5: Solve for x
    x = 20,234,388,937.71/200,424.49
  6. Step 6: Final answer
    x = 100,957.67

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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.