Home / 251,999.47-378,073.03-74,511.10

Finding the Fourth Proportional to 251,999.47, 378,073.03 and 74,511.10

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Solution

The fourth proportional to 251,999.47, 378,073.03 and 74,511.10 is: 111,788.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,999.47 : 378,073.03 = 74,511.10 : x
  2. Step 2: Convert to fraction form
    251,999.47/378,073.03 = 74,511.10/x
  3. Step 3: Cross multiply
    251,999.47x = 378,073.03 × 74,511.10
  4. Step 4: Simplify right side
    251,999.47x = 28,170,637,345.63
  5. Step 5: Solve for x
    x = 28,170,637,345.63/251,999.47
  6. Step 6: Final answer
    x = 111,788.48

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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.