Home / 256,949.27-354,547.69-161,387.90

Finding the Fourth Proportional to 256,949.27, 354,547.69 and 161,387.90

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Solution

The fourth proportional to 256,949.27, 354,547.69 and 161,387.90 is: 222,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,949.27 : 354,547.69 = 161,387.90 : x
  2. Step 2: Convert to fraction form
    256,949.27/354,547.69 = 161,387.90/x
  3. Step 3: Cross multiply
    256,949.27x = 354,547.69 × 161,387.90
  4. Step 4: Simplify right side
    256,949.27x = 57,219,704,962.74
  5. Step 5: Solve for x
    x = 57,219,704,962.74/256,949.27
  6. Step 6: Final answer
    x = 222,688.73

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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.