Home / 300,829.38-415,156.05-171,788.88

Finding the Fourth Proportional to 300,829.38, 415,156.05 and 171,788.88

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Solution

The fourth proportional to 300,829.38, 415,156.05 and 171,788.88 is: 237,075.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,829.38 : 415,156.05 = 171,788.88 : x
  2. Step 2: Convert to fraction form
    300,829.38/415,156.05 = 171,788.88/x
  3. Step 3: Cross multiply
    300,829.38x = 415,156.05 × 171,788.88
  4. Step 4: Simplify right side
    300,829.38x = 71,319,192,854.72
  5. Step 5: Solve for x
    x = 71,319,192,854.72/300,829.38
  6. Step 6: Final answer
    x = 237,075.22

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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.