Home / 305,946.10-422,185.53-169,969.78

Finding the Fourth Proportional to 305,946.10, 422,185.53 and 169,969.78

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Solution

The fourth proportional to 305,946.10, 422,185.53 and 169,969.78 is: 234,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,946.10 : 422,185.53 = 169,969.78 : x
  2. Step 2: Convert to fraction form
    305,946.10/422,185.53 = 169,969.78/x
  3. Step 3: Cross multiply
    305,946.10x = 422,185.53 × 169,969.78
  4. Step 4: Simplify right side
    305,946.10x = 71,758,781,653.28
  5. Step 5: Solve for x
    x = 71,758,781,653.28/305,946.10
  6. Step 6: Final answer
    x = 234,547.14

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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.