Home / 449,215.51-619,971.77-255,670.28

Finding the Fourth Proportional to 449,215.51, 619,971.77 and 255,670.28

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Solution

The fourth proportional to 449,215.51, 619,971.77 and 255,670.28 is: 352,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,215.51 : 619,971.77 = 255,670.28 : x
  2. Step 2: Convert to fraction form
    449,215.51/619,971.77 = 255,670.28/x
  3. Step 3: Cross multiply
    449,215.51x = 619,971.77 × 255,670.28
  4. Step 4: Simplify right side
    449,215.51x = 158,508,356,028.00
  5. Step 5: Solve for x
    x = 158,508,356,028.00/449,215.51
  6. Step 6: Final answer
    x = 352,855.93

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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.