Home / 338,733.64-507,657.52-138,819.97

Finding the Fourth Proportional to 338,733.64, 507,657.52 and 138,819.97

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Solution

The fourth proportional to 338,733.64, 507,657.52 and 138,819.97 is: 208,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,733.64 : 507,657.52 = 138,819.97 : x
  2. Step 2: Convert to fraction form
    338,733.64/507,657.52 = 138,819.97/x
  3. Step 3: Cross multiply
    338,733.64x = 507,657.52 × 138,819.97
  4. Step 4: Simplify right side
    338,733.64x = 70,472,998,811.34
  5. Step 5: Solve for x
    x = 70,472,998,811.34/338,733.64
  6. Step 6: Final answer
    x = 208,048.42

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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.