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Finding the Fourth Proportional to 555.16, 832.45 and 165.11

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Solution

The fourth proportional to 555.16, 832.45 and 165.11 is: 247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.16 : 832.45 = 165.11 : x
  2. Step 2: Convert to fraction form
    555.16/832.45 = 165.11/x
  3. Step 3: Cross multiply
    555.16x = 832.45 × 165.11
  4. Step 4: Simplify right side
    555.16x = 137,444.99
  5. Step 5: Solve for x
    x = 137,444.99/555.16
  6. Step 6: Final answer
    x = 247.58

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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.