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Finding the Fourth Proportional to 527.00, 727.22 and 317.05

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Solution

The fourth proportional to 527.00, 727.22 and 317.05 is: 437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.00 : 727.22 = 317.05 : x
  2. Step 2: Convert to fraction form
    527.00/727.22 = 317.05/x
  3. Step 3: Cross multiply
    527.00x = 727.22 × 317.05
  4. Step 4: Simplify right side
    527.00x = 230,564.08
  5. Step 5: Solve for x
    x = 230,564.08/527.00
  6. Step 6: Final answer
    x = 437.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.