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Finding the Fourth Proportional to 373.68, 514.32 and 318.24

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Solution

The fourth proportional to 373.68, 514.32 and 318.24 is: 438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.68 : 514.32 = 318.24 : x
  2. Step 2: Convert to fraction form
    373.68/514.32 = 318.24/x
  3. Step 3: Cross multiply
    373.68x = 514.32 × 318.24
  4. Step 4: Simplify right side
    373.68x = 163,677.20
  5. Step 5: Solve for x
    x = 163,677.20/373.68
  6. Step 6: Final answer
    x = 438.01

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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.