Home / 398,749.48-598,225.08-132,511.36

Finding the Fourth Proportional to 398,749.48, 598,225.08 and 132,511.36

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Solution

The fourth proportional to 398,749.48, 598,225.08 and 132,511.36 is: 198,800.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,749.48 : 598,225.08 = 132,511.36 : x
  2. Step 2: Convert to fraction form
    398,749.48/598,225.08 = 132,511.36/x
  3. Step 3: Cross multiply
    398,749.48x = 598,225.08 × 132,511.36
  4. Step 4: Simplify right side
    398,749.48x = 79,271,618,936.91
  5. Step 5: Solve for x
    x = 79,271,618,936.91/398,749.48
  6. Step 6: Final answer
    x = 198,800.56

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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.