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Finding the Fourth Proportional to 575,286.15, 863,053.80 and 220,300.18

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Solution

The fourth proportional to 575,286.15, 863,053.80 and 220,300.18 is: 330,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,286.15 : 863,053.80 = 220,300.18 : x
  2. Step 2: Convert to fraction form
    575,286.15/863,053.80 = 220,300.18/x
  3. Step 3: Cross multiply
    575,286.15x = 863,053.80 × 220,300.18
  4. Step 4: Simplify right side
    575,286.15x = 190,130,907,489.68
  5. Step 5: Solve for x
    x = 190,130,907,489.68/575,286.15
  6. Step 6: Final answer
    x = 330,497.97

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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.