Home / 251,980.07-378,010.19-83,506.34

Finding the Fourth Proportional to 251,980.07, 378,010.19 and 83,506.34

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Solution

The fourth proportional to 251,980.07, 378,010.19 and 83,506.34 is: 125,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,980.07 : 378,010.19 = 83,506.34 : x
  2. Step 2: Convert to fraction form
    251,980.07/378,010.19 = 83,506.34/x
  3. Step 3: Cross multiply
    251,980.07x = 378,010.19 × 83,506.34
  4. Step 4: Simplify right side
    251,980.07x = 31,566,248,603.40
  5. Step 5: Solve for x
    x = 31,566,248,603.40/251,980.07
  6. Step 6: Final answer
    x = 125,272.80

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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.