Home / 219,429.90-302,933.78-137,843.25

Finding the Fourth Proportional to 219,429.90, 302,933.78 and 137,843.25

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Solution

The fourth proportional to 219,429.90, 302,933.78 and 137,843.25 is: 190,299.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,429.90 : 302,933.78 = 137,843.25 : x
  2. Step 2: Convert to fraction form
    219,429.90/302,933.78 = 137,843.25/x
  3. Step 3: Cross multiply
    219,429.90x = 302,933.78 × 137,843.25
  4. Step 4: Simplify right side
    219,429.90x = 41,757,376,080.77
  5. Step 5: Solve for x
    x = 41,757,376,080.77/219,429.90
  6. Step 6: Final answer
    x = 190,299.39

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1.5x scale

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.