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Finding the Fourth Proportional to 1,302.48, 1,952.35 and 480.23

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Solution

The fourth proportional to 1,302.48, 1,952.35 and 480.23 is: 719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302.48 : 1,952.35 = 480.23 : x
  2. Step 2: Convert to fraction form
    1,302.48/1,952.35 = 480.23/x
  3. Step 3: Cross multiply
    1,302.48x = 1,952.35 × 480.23
  4. Step 4: Simplify right side
    1,302.48x = 937,566.08
  5. Step 5: Solve for x
    x = 937,566.08/1,302.48
  6. Step 6: Final answer
    x = 719.83

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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.