Home / 309,269.07-426,791.03-173,304.09

Finding the Fourth Proportional to 309,269.07, 426,791.03 and 173,304.09

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Solution

The fourth proportional to 309,269.07, 426,791.03 and 173,304.09 is: 239,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,269.07 : 426,791.03 = 173,304.09 : x
  2. Step 2: Convert to fraction form
    309,269.07/426,791.03 = 173,304.09/x
  3. Step 3: Cross multiply
    309,269.07x = 426,791.03 × 173,304.09
  4. Step 4: Simplify right side
    309,269.07x = 73,964,630,207.79
  5. Step 5: Solve for x
    x = 73,964,630,207.79/309,269.07
  6. Step 6: Final answer
    x = 239,159.48

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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.