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Finding the Fourth Proportional to 342.24, 509.73 and 340.44

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Solution

The fourth proportional to 342.24, 509.73 and 340.44 is: 507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.24 : 509.73 = 340.44 : x
  2. Step 2: Convert to fraction form
    342.24/509.73 = 340.44/x
  3. Step 3: Cross multiply
    342.24x = 509.73 × 340.44
  4. Step 4: Simplify right side
    342.24x = 173,532.48
  5. Step 5: Solve for x
    x = 173,532.48/342.24
  6. Step 6: Final answer
    x = 507.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.