Home / 321,929.22-482,939.91-100,330.50

Finding the Fourth Proportional to 321,929.22, 482,939.91 and 100,330.50

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Solution

The fourth proportional to 321,929.22, 482,939.91 and 100,330.50 is: 150,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,929.22 : 482,939.91 = 100,330.50 : x
  2. Step 2: Convert to fraction form
    321,929.22/482,939.91 = 100,330.50/x
  3. Step 3: Cross multiply
    321,929.22x = 482,939.91 × 100,330.50
  4. Step 4: Simplify right side
    321,929.22x = 48,453,602,640.26
  5. Step 5: Solve for x
    x = 48,453,602,640.26/321,929.22
  6. Step 6: Final answer
    x = 150,510.11

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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.