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Finding the Fourth Proportional to 495.16, 741.78 and 475

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Solution

The fourth proportional to 495.16, 741.78 and 475 is: 711.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.16 : 741.78 = 475 : x
  2. Step 2: Convert to fraction form
    495.16/741.78 = 475/x
  3. Step 3: Cross multiply
    495.16x = 741.78 × 475
  4. Step 4: Simplify right side
    495.16x = 352,345.50
  5. Step 5: Solve for x
    x = 352,345.50/495.16
  6. Step 6: Final answer
    x = 711.58

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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.