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Finding the Fourth Proportional to 289,294.20, 433,358.10 and 200,647.80

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Solution

The fourth proportional to 289,294.20, 433,358.10 and 200,647.80 is: 300,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,294.20 : 433,358.10 = 200,647.80 : x
  2. Step 2: Convert to fraction form
    289,294.20/433,358.10 = 200,647.80/x
  3. Step 3: Cross multiply
    289,294.20x = 433,358.10 × 200,647.80
  4. Step 4: Simplify right side
    289,294.20x = 86,952,349,377.18
  5. Step 5: Solve for x
    x = 86,952,349,377.18/289,294.20
  6. Step 6: Final answer
    x = 300,567.21

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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.