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Finding the Fourth Proportional to 213,377.66, 320,062.35 and 63,719.36

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Solution

The fourth proportional to 213,377.66, 320,062.35 and 63,719.36 is: 95,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,377.66 : 320,062.35 = 63,719.36 : x
  2. Step 2: Convert to fraction form
    213,377.66/320,062.35 = 63,719.36/x
  3. Step 3: Cross multiply
    213,377.66x = 320,062.35 × 63,719.36
  4. Step 4: Simplify right side
    213,377.66x = 20,394,168,102.10
  5. Step 5: Solve for x
    x = 20,394,168,102.10/213,377.66
  6. Step 6: Final answer
    x = 95,577.80

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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.