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Finding the Fourth Proportional to 1,301.51, 1,953.03 and 480.36

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Solution

The fourth proportional to 1,301.51, 1,953.03 and 480.36 is: 720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.51 : 1,953.03 = 480.36 : x
  2. Step 2: Convert to fraction form
    1,301.51/1,953.03 = 480.36/x
  3. Step 3: Cross multiply
    1,301.51x = 1,953.03 × 480.36
  4. Step 4: Simplify right side
    1,301.51x = 938,157.49
  5. Step 5: Solve for x
    x = 938,157.49/1,301.51
  6. Step 6: Final answer
    x = 720.82

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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.