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Finding the Fourth Proportional to 587.63, 881.98 and 313.95

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Solution

The fourth proportional to 587.63, 881.98 and 313.95 is: 471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.63 : 881.98 = 313.95 : x
  2. Step 2: Convert to fraction form
    587.63/881.98 = 313.95/x
  3. Step 3: Cross multiply
    587.63x = 881.98 × 313.95
  4. Step 4: Simplify right side
    587.63x = 276,897.62
  5. Step 5: Solve for x
    x = 276,897.62/587.63
  6. Step 6: Final answer
    x = 471.21

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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.