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Finding the Fourth Proportional to 266,507.40, 399,760.94 and 133,253.48

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Solution

The fourth proportional to 266,507.40, 399,760.94 and 133,253.48 is: 199,880.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,507.40 : 399,760.94 = 133,253.48 : x
  2. Step 2: Convert to fraction form
    266,507.40/399,760.94 = 133,253.48/x
  3. Step 3: Cross multiply
    266,507.40x = 399,760.94 × 133,253.48
  4. Step 4: Simplify right side
    266,507.40x = 53,269,536,423.07
  5. Step 5: Solve for x
    x = 53,269,536,423.07/266,507.40
  6. Step 6: Final answer
    x = 199,880.14

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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.