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Finding the Fourth Proportional to 369.32, 509.70 and 214.06

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Solution

The fourth proportional to 369.32, 509.70 and 214.06 is: 295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.32 : 509.70 = 214.06 : x
  2. Step 2: Convert to fraction form
    369.32/509.70 = 214.06/x
  3. Step 3: Cross multiply
    369.32x = 509.70 × 214.06
  4. Step 4: Simplify right side
    369.32x = 109,106.38
  5. Step 5: Solve for x
    x = 109,106.38/369.32
  6. Step 6: Final answer
    x = 295.43

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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.