Home / 338,780.62-508,256.34-239,135.50

Finding the Fourth Proportional to 338,780.62, 508,256.34 and 239,135.50

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Solution

The fourth proportional to 338,780.62, 508,256.34 and 239,135.50 is: 358,763.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,780.62 : 508,256.34 = 239,135.50 : x
  2. Step 2: Convert to fraction form
    338,780.62/508,256.34 = 239,135.50/x
  3. Step 3: Cross multiply
    338,780.62x = 508,256.34 × 239,135.50
  4. Step 4: Simplify right side
    338,780.62x = 121,542,133,994.07
  5. Step 5: Solve for x
    x = 121,542,133,994.07/338,780.62
  6. Step 6: Final answer
    x = 358,763.54

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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.