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Finding the Fourth Proportional to 349.59, 524.64 and 281.93

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Solution

The fourth proportional to 349.59, 524.64 and 281.93 is: 423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.59 : 524.64 = 281.93 : x
  2. Step 2: Convert to fraction form
    349.59/524.64 = 281.93/x
  3. Step 3: Cross multiply
    349.59x = 524.64 × 281.93
  4. Step 4: Simplify right side
    349.59x = 147,911.76
  5. Step 5: Solve for x
    x = 147,911.76/349.59
  6. Step 6: Final answer
    x = 423.10

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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.