Home / 320,156.07-480,234.03-83,498.10

Finding the Fourth Proportional to 320,156.07, 480,234.03 and 83,498.10

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Solution

The fourth proportional to 320,156.07, 480,234.03 and 83,498.10 is: 125,247.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,156.07 : 480,234.03 = 83,498.10 : x
  2. Step 2: Convert to fraction form
    320,156.07/480,234.03 = 83,498.10/x
  3. Step 3: Cross multiply
    320,156.07x = 480,234.03 × 83,498.10
  4. Step 4: Simplify right side
    320,156.07x = 40,098,629,060.34
  5. Step 5: Solve for x
    x = 40,098,629,060.34/320,156.07
  6. Step 6: Final answer
    x = 125,247.13

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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.