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Finding the Fourth Proportional to 555.24, 833.44 and 409.15

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Solution

The fourth proportional to 555.24, 833.44 and 409.15 is: 614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.24 : 833.44 = 409.15 : x
  2. Step 2: Convert to fraction form
    555.24/833.44 = 409.15/x
  3. Step 3: Cross multiply
    555.24x = 833.44 × 409.15
  4. Step 4: Simplify right side
    555.24x = 341,001.98
  5. Step 5: Solve for x
    x = 341,001.98/555.24
  6. Step 6: Final answer
    x = 614.15

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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.