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Finding the Fourth Proportional to 305,887.92, 422,192.80 and 169,968.58

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Solution

The fourth proportional to 305,887.92, 422,192.80 and 169,968.58 is: 234,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,887.92 : 422,192.80 = 169,968.58 : x
  2. Step 2: Convert to fraction form
    305,887.92/422,192.80 = 169,968.58/x
  3. Step 3: Cross multiply
    305,887.92x = 422,192.80 × 169,968.58
  4. Step 4: Simplify right side
    305,887.92x = 71,759,510,702.22
  5. Step 5: Solve for x
    x = 71,759,510,702.22/305,887.92
  6. Step 6: Final answer
    x = 234,594.13

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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.