Home / 309,270.07-426,792.40-173,305.09

Finding the Fourth Proportional to 309,270.07, 426,792.40 and 173,305.09

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Solution

The fourth proportional to 309,270.07, 426,792.40 and 173,305.09 is: 239,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,270.07 : 426,792.40 = 173,305.09 : x
  2. Step 2: Convert to fraction form
    309,270.07/426,792.40 = 173,305.09/x
  3. Step 3: Cross multiply
    309,270.07x = 426,792.40 × 173,305.09
  4. Step 4: Simplify right side
    309,270.07x = 73,965,295,293.32
  5. Step 5: Solve for x
    x = 73,965,295,293.32/309,270.07
  6. Step 6: Final answer
    x = 239,160.86

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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.