Home / 215,127.76-322,691.21-102,466.28

Finding the Fourth Proportional to 215,127.76, 322,691.21 and 102,466.28

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Solution

The fourth proportional to 215,127.76, 322,691.21 and 102,466.28 is: 153,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,127.76 : 322,691.21 = 102,466.28 : x
  2. Step 2: Convert to fraction form
    215,127.76/322,691.21 = 102,466.28/x
  3. Step 3: Cross multiply
    215,127.76x = 322,691.21 × 102,466.28
  4. Step 4: Simplify right side
    215,127.76x = 33,064,967,877.40
  5. Step 5: Solve for x
    x = 33,064,967,877.40/215,127.76
  6. Step 6: Final answer
    x = 153,699.22

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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.