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Finding the Fourth Proportional to 213,053.58, 319,624.10 and 63,280.53

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Solution

The fourth proportional to 213,053.58, 319,624.10 and 63,280.53 is: 94,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,053.58 : 319,624.10 = 63,280.53 : x
  2. Step 2: Convert to fraction form
    213,053.58/319,624.10 = 63,280.53/x
  3. Step 3: Cross multiply
    213,053.58x = 319,624.10 × 63,280.53
  4. Step 4: Simplify right side
    213,053.58x = 20,225,982,132.37
  5. Step 5: Solve for x
    x = 20,225,982,132.37/213,053.58
  6. Step 6: Final answer
    x = 94,933.78

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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.