Home / 515,111.04-772,548.48-141,163.20

Finding the Fourth Proportional to 515,111.04, 772,548.48 and 141,163.20

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Solution

The fourth proportional to 515,111.04, 772,548.48 and 141,163.20 is: 211,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,111.04 : 772,548.48 = 141,163.20 : x
  2. Step 2: Convert to fraction form
    515,111.04/772,548.48 = 141,163.20/x
  3. Step 3: Cross multiply
    515,111.04x = 772,548.48 × 141,163.20
  4. Step 4: Simplify right side
    515,111.04x = 109,055,415,591.94
  5. Step 5: Solve for x
    x = 109,055,415,591.94/515,111.04
  6. Step 6: Final answer
    x = 211,712.44

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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.