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Finding the Fourth Proportional to 270,248.16, 405,371.40 and 189,955.56

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Solution

The fourth proportional to 270,248.16, 405,371.40 and 189,955.56 is: 284,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,248.16 : 405,371.40 = 189,955.56 : x
  2. Step 2: Convert to fraction form
    270,248.16/405,371.40 = 189,955.56/x
  3. Step 3: Cross multiply
    270,248.16x = 405,371.40 × 189,955.56
  4. Step 4: Simplify right side
    270,248.16x = 77,002,551,294.98
  5. Step 5: Solve for x
    x = 77,002,551,294.98/270,248.16
  6. Step 6: Final answer
    x = 284,932.75

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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.