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Finding the Fourth Proportional to 670.14, 924.30 and 437.31

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Solution

The fourth proportional to 670.14, 924.30 and 437.31 is: 603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    670.14 : 924.30 = 437.31 : x
  2. Step 2: Convert to fraction form
    670.14/924.30 = 437.31/x
  3. Step 3: Cross multiply
    670.14x = 924.30 × 437.31
  4. Step 4: Simplify right side
    670.14x = 404,205.63
  5. Step 5: Solve for x
    x = 404,205.63/670.14
  6. Step 6: Final answer
    x = 603.17

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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.