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Finding the Fourth Proportional to 364.34, 502.85 and 207

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Solution

The fourth proportional to 364.34, 502.85 and 207 is: 285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.34 : 502.85 = 207 : x
  2. Step 2: Convert to fraction form
    364.34/502.85 = 207/x
  3. Step 3: Cross multiply
    364.34x = 502.85 × 207
  4. Step 4: Simplify right side
    364.34x = 104,090.47
  5. Step 5: Solve for x
    x = 104,090.47/364.34
  6. Step 6: Final answer
    x = 285.69

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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.