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Finding the Fourth Proportional to 295,564.70, 443,347.05 and 206,918.30

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Solution

The fourth proportional to 295,564.70, 443,347.05 and 206,918.30 is: 310,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,564.70 : 443,347.05 = 206,918.30 : x
  2. Step 2: Convert to fraction form
    295,564.70/443,347.05 = 206,918.30/x
  3. Step 3: Cross multiply
    295,564.70x = 443,347.05 × 206,918.30
  4. Step 4: Simplify right side
    295,564.70x = 91,736,617,896.02
  5. Step 5: Solve for x
    x = 91,736,617,896.02/295,564.70
  6. Step 6: Final answer
    x = 310,377.45

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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.