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Finding the Fourth Proportional to 495.47, 743.45 and 248.70

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Solution

The fourth proportional to 495.47, 743.45 and 248.70 is: 373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.47 : 743.45 = 248.70 : x
  2. Step 2: Convert to fraction form
    495.47/743.45 = 248.70/x
  3. Step 3: Cross multiply
    495.47x = 743.45 × 248.70
  4. Step 4: Simplify right side
    495.47x = 184,894.77
  5. Step 5: Solve for x
    x = 184,894.77/495.47
  6. Step 6: Final answer
    x = 373.17

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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.