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Finding the Fourth Proportional to 554.86, 832.51 and 281.03

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Solution

The fourth proportional to 554.86, 832.51 and 281.03 is: 421.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.86 : 832.51 = 281.03 : x
  2. Step 2: Convert to fraction form
    554.86/832.51 = 281.03/x
  3. Step 3: Cross multiply
    554.86x = 832.51 × 281.03
  4. Step 4: Simplify right side
    554.86x = 233,956.12
  5. Step 5: Solve for x
    x = 233,956.12/554.86
  6. Step 6: Final answer
    x = 421.65

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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.