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Finding the Fourth Proportional to 654.90, 903.77 and 360.16

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Solution

The fourth proportional to 654.90, 903.77 and 360.16 is: 497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.90 : 903.77 = 360.16 : x
  2. Step 2: Convert to fraction form
    654.90/903.77 = 360.16/x
  3. Step 3: Cross multiply
    654.90x = 903.77 × 360.16
  4. Step 4: Simplify right side
    654.90x = 325,501.80
  5. Step 5: Solve for x
    x = 325,501.80/654.90
  6. Step 6: Final answer
    x = 497.03

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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.