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Finding the Fourth Proportional to 670.16, 925.08 and 437.68

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Solution

The fourth proportional to 670.16, 925.08 and 437.68 is: 604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.16 : 925.08 = 437.68 : x
  2. Step 2: Convert to fraction form
    670.16/925.08 = 437.68/x
  3. Step 3: Cross multiply
    670.16x = 925.08 × 437.68
  4. Step 4: Simplify right side
    670.16x = 404,889.01
  5. Step 5: Solve for x
    x = 404,889.01/670.16
  6. Step 6: Final answer
    x = 604.17

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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.