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Finding the Fourth Proportional to 503,134.20, 755,576.10 and 266,938.20

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Solution

The fourth proportional to 503,134.20, 755,576.10 and 266,938.20 is: 400,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,134.20 : 755,576.10 = 266,938.20 : x
  2. Step 2: Convert to fraction form
    503,134.20/755,576.10 = 266,938.20/x
  3. Step 3: Cross multiply
    503,134.20x = 755,576.10 × 266,938.20
  4. Step 4: Simplify right side
    503,134.20x = 201,692,124,097.02
  5. Step 5: Solve for x
    x = 201,692,124,097.02/503,134.20
  6. Step 6: Final answer
    x = 400,871.43

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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.