Home / 320,200.76-480,353.94-133,225.40

Finding the Fourth Proportional to 320,200.76, 480,353.94 and 133,225.40

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Solution

The fourth proportional to 320,200.76, 480,353.94 and 133,225.40 is: 199,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,200.76 : 480,353.94 = 133,225.40 : x
  2. Step 2: Convert to fraction form
    320,200.76/480,353.94 = 133,225.40/x
  3. Step 3: Cross multiply
    320,200.76x = 480,353.94 × 133,225.40
  4. Step 4: Simplify right side
    320,200.76x = 63,995,345,798.08
  5. Step 5: Solve for x
    x = 63,995,345,798.08/320,200.76
  6. Step 6: Final answer
    x = 199,860.07

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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.