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Finding the Fourth Proportional to 349.85, 525.59 and 302.87

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Solution

The fourth proportional to 349.85, 525.59 and 302.87 is: 455.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.85 : 525.59 = 302.87 : x
  2. Step 2: Convert to fraction form
    349.85/525.59 = 302.87/x
  3. Step 3: Cross multiply
    349.85x = 525.59 × 302.87
  4. Step 4: Simplify right side
    349.85x = 159,186.38
  5. Step 5: Solve for x
    x = 159,186.38/349.85
  6. Step 6: Final answer
    x = 455.01

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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.