Home / 449,215.45-619,971.68-255,670.22

Finding the Fourth Proportional to 449,215.45, 619,971.68 and 255,670.22

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Solution

The fourth proportional to 449,215.45, 619,971.68 and 255,670.22 is: 352,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,215.45 : 619,971.68 = 255,670.22 : x
  2. Step 2: Convert to fraction form
    449,215.45/619,971.68 = 255,670.22/x
  3. Step 3: Cross multiply
    449,215.45x = 619,971.68 × 255,670.22
  4. Step 4: Simplify right side
    449,215.45x = 158,508,298,008.47
  5. Step 5: Solve for x
    x = 158,508,298,008.47/449,215.45
  6. Step 6: Final answer
    x = 352,855.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.