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Finding the Fourth Proportional to 587.79, 881.35 and 176.81

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Solution

The fourth proportional to 587.79, 881.35 and 176.81 is: 265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.79 : 881.35 = 176.81 : x
  2. Step 2: Convert to fraction form
    587.79/881.35 = 176.81/x
  3. Step 3: Cross multiply
    587.79x = 881.35 × 176.81
  4. Step 4: Simplify right side
    587.79x = 155,826.64
  5. Step 5: Solve for x
    x = 155,826.64/587.79
  6. Step 6: Final answer
    x = 265.11

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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.