Home / 305,891.04-422,135.04-169,937.28

Finding the Fourth Proportional to 305,891.04, 422,135.04 and 169,937.28

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Solution

The fourth proportional to 305,891.04, 422,135.04 and 169,937.28 is: 234,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,891.04 : 422,135.04 = 169,937.28 : x
  2. Step 2: Convert to fraction form
    305,891.04/422,135.04 = 169,937.28/x
  3. Step 3: Cross multiply
    305,891.04x = 422,135.04 × 169,937.28
  4. Step 4: Simplify right side
    305,891.04x = 71,736,480,490.29
  5. Step 5: Solve for x
    x = 71,736,480,490.29/305,891.04
  6. Step 6: Final answer
    x = 234,516.45

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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.