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Finding the Fourth Proportional to 509.63, 764.59 and 249.62

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Solution

The fourth proportional to 509.63, 764.59 and 249.62 is: 374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.63 : 764.59 = 249.62 : x
  2. Step 2: Convert to fraction form
    509.63/764.59 = 249.62/x
  3. Step 3: Cross multiply
    509.63x = 764.59 × 249.62
  4. Step 4: Simplify right side
    509.63x = 190,858.24
  5. Step 5: Solve for x
    x = 190,858.24/509.63
  6. Step 6: Final answer
    x = 374.50

Related Problems

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Half scale
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Double scale
Find fourth proportional to 510.63, 766.09 and 250.62
Similar ratio
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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.