Home / 320,581.24-480,915.62-133,549

Finding the Fourth Proportional to 320,581.24, 480,915.62 and 133,549

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Solution

The fourth proportional to 320,581.24, 480,915.62 and 133,549 is: 200,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,581.24 : 480,915.62 = 133,549 : x
  2. Step 2: Convert to fraction form
    320,581.24/480,915.62 = 133,549/x
  3. Step 3: Cross multiply
    320,581.24x = 480,915.62 × 133,549
  4. Step 4: Simplify right side
    320,581.24x = 64,225,800,135.38
  5. Step 5: Solve for x
    x = 64,225,800,135.38/320,581.24
  6. Step 6: Final answer
    x = 200,341.73

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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.