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Finding the Fourth Proportional to 603.65, 906.29 and 357.31

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Solution

The fourth proportional to 603.65, 906.29 and 357.31 is: 536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.65 : 906.29 = 357.31 : x
  2. Step 2: Convert to fraction form
    603.65/906.29 = 357.31/x
  3. Step 3: Cross multiply
    603.65x = 906.29 × 357.31
  4. Step 4: Simplify right side
    603.65x = 323,827.17
  5. Step 5: Solve for x
    x = 323,827.17/603.65
  6. Step 6: Final answer
    x = 536.45

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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.