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Finding the Fourth Proportional to 300,532.93, 450,695.60 and 87,243.02

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Solution

The fourth proportional to 300,532.93, 450,695.60 and 87,243.02 is: 130,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,532.93 : 450,695.60 = 87,243.02 : x
  2. Step 2: Convert to fraction form
    300,532.93/450,695.60 = 87,243.02/x
  3. Step 3: Cross multiply
    300,532.93x = 450,695.60 × 87,243.02
  4. Step 4: Simplify right side
    300,532.93x = 39,320,043,209.34
  5. Step 5: Solve for x
    x = 39,320,043,209.34/300,532.93
  6. Step 6: Final answer
    x = 130,834.39

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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.