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Finding the Fourth Proportional to 604.93, 907.53 and 172.12

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Solution

The fourth proportional to 604.93, 907.53 and 172.12 is: 258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.93 : 907.53 = 172.12 : x
  2. Step 2: Convert to fraction form
    604.93/907.53 = 172.12/x
  3. Step 3: Cross multiply
    604.93x = 907.53 × 172.12
  4. Step 4: Simplify right side
    604.93x = 156,204.06
  5. Step 5: Solve for x
    x = 156,204.06/604.93
  6. Step 6: Final answer
    x = 258.22

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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.