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Finding the Fourth Proportional to 555.05, 832.68 and 553.43

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Solution

The fourth proportional to 555.05, 832.68 and 553.43 is: 830.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.05 : 832.68 = 553.43 : x
  2. Step 2: Convert to fraction form
    555.05/832.68 = 553.43/x
  3. Step 3: Cross multiply
    555.05x = 832.68 × 553.43
  4. Step 4: Simplify right side
    555.05x = 460,832.17
  5. Step 5: Solve for x
    x = 460,832.17/555.05
  6. Step 6: Final answer
    x = 830.25

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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.