Home / 251,066.86-346,489.23-137,890.78

Finding the Fourth Proportional to 251,066.86, 346,489.23 and 137,890.78

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Solution

The fourth proportional to 251,066.86, 346,489.23 and 137,890.78 is: 190,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,066.86 : 346,489.23 = 137,890.78 : x
  2. Step 2: Convert to fraction form
    251,066.86/346,489.23 = 137,890.78/x
  3. Step 3: Cross multiply
    251,066.86x = 346,489.23 × 137,890.78
  4. Step 4: Simplify right side
    251,066.86x = 47,777,670,186.30
  5. Step 5: Solve for x
    x = 47,777,670,186.30/251,066.86
  6. Step 6: Final answer
    x = 190,298.59

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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.