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Finding the Fourth Proportional to 576,376.70, 864,606.51 and 221,390.73

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Solution

The fourth proportional to 576,376.70, 864,606.51 and 221,390.73 is: 332,102.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,376.70 : 864,606.51 = 221,390.73 : x
  2. Step 2: Convert to fraction form
    576,376.70/864,606.51 = 221,390.73/x
  3. Step 3: Cross multiply
    576,376.70x = 864,606.51 × 221,390.73
  4. Step 4: Simplify right side
    576,376.70x = 191,415,866,411.65
  5. Step 5: Solve for x
    x = 191,415,866,411.65/576,376.70
  6. Step 6: Final answer
    x = 332,102.02

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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.