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Finding the Fourth Proportional to 555.43, 833.39 and 298.63

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Solution

The fourth proportional to 555.43, 833.39 and 298.63 is: 448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.43 : 833.39 = 298.63 : x
  2. Step 2: Convert to fraction form
    555.43/833.39 = 298.63/x
  3. Step 3: Cross multiply
    555.43x = 833.39 × 298.63
  4. Step 4: Simplify right side
    555.43x = 248,875.26
  5. Step 5: Solve for x
    x = 248,875.26/555.43
  6. Step 6: Final answer
    x = 448.08

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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.