Home / 251,148.75-346,585.41-137,978.79

Finding the Fourth Proportional to 251,148.75, 346,585.41 and 137,978.79

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Solution

The fourth proportional to 251,148.75, 346,585.41 and 137,978.79 is: 190,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,148.75 : 346,585.41 = 137,978.79 : x
  2. Step 2: Convert to fraction form
    251,148.75/346,585.41 = 137,978.79/x
  3. Step 3: Cross multiply
    251,148.75x = 346,585.41 × 137,978.79
  4. Step 4: Simplify right side
    251,148.75x = 47,821,435,503.45
  5. Step 5: Solve for x
    x = 47,821,435,503.45/251,148.75
  6. Step 6: Final answer
    x = 190,410.80

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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.