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Finding the Fourth Proportional to 508.04, 761.16 and 480.72

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Solution

The fourth proportional to 508.04, 761.16 and 480.72 is: 720.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.04 : 761.16 = 480.72 : x
  2. Step 2: Convert to fraction form
    508.04/761.16 = 480.72/x
  3. Step 3: Cross multiply
    508.04x = 761.16 × 480.72
  4. Step 4: Simplify right side
    508.04x = 365,904.84
  5. Step 5: Solve for x
    x = 365,904.84/508.04
  6. Step 6: Final answer
    x = 720.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.