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Finding the Fourth Proportional to 541,289.20, 811,588.20 and 225,871.60

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Solution

The fourth proportional to 541,289.20, 811,588.20 and 225,871.60 is: 338,663.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,289.20 : 811,588.20 = 225,871.60 : x
  2. Step 2: Convert to fraction form
    541,289.20/811,588.20 = 225,871.60/x
  3. Step 3: Cross multiply
    541,289.20x = 811,588.20 × 225,871.60
  4. Step 4: Simplify right side
    541,289.20x = 183,314,725,275.12
  5. Step 5: Solve for x
    x = 183,314,725,275.12/541,289.20
  6. Step 6: Final answer
    x = 338,663.19

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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.