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Finding the Fourth Proportional to 464.80, 651.20 and 464.80

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Solution

The fourth proportional to 464.80, 651.20 and 464.80 is: 651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.80 : 651.20 = 464.80 : x
  2. Step 2: Convert to fraction form
    464.80/651.20 = 464.80/x
  3. Step 3: Cross multiply
    464.80x = 651.20 × 464.80
  4. Step 4: Simplify right side
    464.80x = 302,677.76
  5. Step 5: Solve for x
    x = 302,677.76/464.80
  6. Step 6: Final answer
    x = 651.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.