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Finding the Fourth Proportional to 437.40, 603.53 and 262.74

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Solution

The fourth proportional to 437.40, 603.53 and 262.74 is: 362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.40 : 603.53 = 262.74 : x
  2. Step 2: Convert to fraction form
    437.40/603.53 = 262.74/x
  3. Step 3: Cross multiply
    437.40x = 603.53 × 262.74
  4. Step 4: Simplify right side
    437.40x = 158,570.16
  5. Step 5: Solve for x
    x = 158,570.16/437.40
  6. Step 6: Final answer
    x = 362.53

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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.