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Finding the Fourth Proportional to 604.96, 907.48 and 172.16

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Solution

The fourth proportional to 604.96, 907.48 and 172.16 is: 258.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.96 : 907.48 = 172.16 : x
  2. Step 2: Convert to fraction form
    604.96/907.48 = 172.16/x
  3. Step 3: Cross multiply
    604.96x = 907.48 × 172.16
  4. Step 4: Simplify right side
    604.96x = 156,231.76
  5. Step 5: Solve for x
    x = 156,231.76/604.96
  6. Step 6: Final answer
    x = 258.25

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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.