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Finding the Fourth Proportional to 458.48, 632.48 and 303.36

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Solution

The fourth proportional to 458.48, 632.48 and 303.36 is: 418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.48 : 632.48 = 303.36 : x
  2. Step 2: Convert to fraction form
    458.48/632.48 = 303.36/x
  3. Step 3: Cross multiply
    458.48x = 632.48 × 303.36
  4. Step 4: Simplify right side
    458.48x = 191,869.13
  5. Step 5: Solve for x
    x = 191,869.13/458.48
  6. Step 6: Final answer
    x = 418.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.