Home / 251,313.86-346,814.28-138,143.90

Finding the Fourth Proportional to 251,313.86, 346,814.28 and 138,143.90

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Solution

The fourth proportional to 251,313.86, 346,814.28 and 138,143.90 is: 190,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,313.86 : 346,814.28 = 138,143.90 : x
  2. Step 2: Convert to fraction form
    251,313.86/346,814.28 = 138,143.90/x
  3. Step 3: Cross multiply
    251,313.86x = 346,814.28 × 138,143.90
  4. Step 4: Simplify right side
    251,313.86x = 47,910,277,214.89
  5. Step 5: Solve for x
    x = 47,910,277,214.89/251,313.86
  6. Step 6: Final answer
    x = 190,639.22

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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.