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Finding the Fourth Proportional to 509.66, 764.56 and 162.88

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Solution

The fourth proportional to 509.66, 764.56 and 162.88 is: 244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.66 : 764.56 = 162.88 : x
  2. Step 2: Convert to fraction form
    509.66/764.56 = 162.88/x
  3. Step 3: Cross multiply
    509.66x = 764.56 × 162.88
  4. Step 4: Simplify right side
    509.66x = 124,528.91
  5. Step 5: Solve for x
    x = 124,528.91/509.66
  6. Step 6: Final answer
    x = 244.34

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1.5x scale

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.