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Finding the Fourth Proportional to 575,285.82, 863,053.34 and 220,299.87

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Solution

The fourth proportional to 575,285.82, 863,053.34 and 220,299.87 is: 330,497.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,285.82 : 863,053.34 = 220,299.87 : x
  2. Step 2: Convert to fraction form
    575,285.82/863,053.34 = 220,299.87/x
  3. Step 3: Cross multiply
    575,285.82x = 863,053.34 × 220,299.87
  4. Step 4: Simplify right side
    575,285.82x = 190,130,538,605.07
  5. Step 5: Solve for x
    x = 190,130,538,605.07/575,285.82
  6. Step 6: Final answer
    x = 330,497.52

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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.