Home / 251,065.60-346,472.88-137,890.72

Finding the Fourth Proportional to 251,065.60, 346,472.88 and 137,890.72

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Solution

The fourth proportional to 251,065.60, 346,472.88 and 137,890.72 is: 190,290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,065.60 : 346,472.88 = 137,890.72 : x
  2. Step 2: Convert to fraction form
    251,065.60/346,472.88 = 137,890.72/x
  3. Step 3: Cross multiply
    251,065.60x = 346,472.88 × 137,890.72
  4. Step 4: Simplify right side
    251,065.60x = 47,775,394,883.67
  5. Step 5: Solve for x
    x = 47,775,394,883.67/251,065.60
  6. Step 6: Final answer
    x = 190,290.49

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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.