Home / 305,979.90-422,131.32-176,894.62

Finding the Fourth Proportional to 305,979.90, 422,131.32 and 176,894.62

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Solution

The fourth proportional to 305,979.90, 422,131.32 and 176,894.62 is: 244,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,979.90 : 422,131.32 = 176,894.62 : x
  2. Step 2: Convert to fraction form
    305,979.90/422,131.32 = 176,894.62/x
  3. Step 3: Cross multiply
    305,979.90x = 422,131.32 × 176,894.62
  4. Step 4: Simplify right side
    305,979.90x = 74,672,759,441.50
  5. Step 5: Solve for x
    x = 74,672,759,441.50/305,979.90
  6. Step 6: Final answer
    x = 244,044.66

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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.