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Finding the Fourth Proportional to 364.83, 503.72 and 253.18

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Solution

The fourth proportional to 364.83, 503.72 and 253.18 is: 349.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.83 : 503.72 = 253.18 : x
  2. Step 2: Convert to fraction form
    364.83/503.72 = 253.18/x
  3. Step 3: Cross multiply
    364.83x = 503.72 × 253.18
  4. Step 4: Simplify right side
    364.83x = 127,531.83
  5. Step 5: Solve for x
    x = 127,531.83/364.83
  6. Step 6: Final answer
    x = 349.57

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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.