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Finding the Fourth Proportional to 200,402.29, 300,618.02 and 67,281.42

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Solution

The fourth proportional to 200,402.29, 300,618.02 and 67,281.42 is: 100,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,402.29 : 300,618.02 = 67,281.42 : x
  2. Step 2: Convert to fraction form
    200,402.29/300,618.02 = 67,281.42/x
  3. Step 3: Cross multiply
    200,402.29x = 300,618.02 × 67,281.42
  4. Step 4: Simplify right side
    200,402.29x = 20,226,007,263.19
  5. Step 5: Solve for x
    x = 20,226,007,263.19/200,402.29
  6. Step 6: Final answer
    x = 100,927.03

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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.