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Finding the Fourth Proportional to 472.77, 652.97 and 315.14

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Solution

The fourth proportional to 472.77, 652.97 and 315.14 is: 435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.77 : 652.97 = 315.14 : x
  2. Step 2: Convert to fraction form
    472.77/652.97 = 315.14/x
  3. Step 3: Cross multiply
    472.77x = 652.97 × 315.14
  4. Step 4: Simplify right side
    472.77x = 205,775.95
  5. Step 5: Solve for x
    x = 205,775.95/472.77
  6. Step 6: Final answer
    x = 435.26

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Find fourth proportional to 236.38, 326.48 and 157.57
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.