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Finding the Fourth Proportional to 314.89, 471.98 and 152.24

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Solution

The fourth proportional to 314.89, 471.98 and 152.24 is: 228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.89 : 471.98 = 152.24 : x
  2. Step 2: Convert to fraction form
    314.89/471.98 = 152.24/x
  3. Step 3: Cross multiply
    314.89x = 471.98 × 152.24
  4. Step 4: Simplify right side
    314.89x = 71,852.26
  5. Step 5: Solve for x
    x = 71,852.26/314.89
  6. Step 6: Final answer
    x = 228.18

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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.