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Finding the Fourth Proportional to 307,553.64, 424,598.40 and 200,069.88

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Solution

The fourth proportional to 307,553.64, 424,598.40 and 200,069.88 is: 276,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,553.64 : 424,598.40 = 200,069.88 : x
  2. Step 2: Convert to fraction form
    307,553.64/424,598.40 = 200,069.88/x
  3. Step 3: Cross multiply
    307,553.64x = 424,598.40 × 200,069.88
  4. Step 4: Simplify right side
    307,553.64x = 84,949,350,936.19
  5. Step 5: Solve for x
    x = 84,949,350,936.19/307,553.64
  6. Step 6: Final answer
    x = 276,209.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.