Home / 256,536.82-384,811.80-121,569.22

Finding the Fourth Proportional to 256,536.82, 384,811.80 and 121,569.22

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Solution

The fourth proportional to 256,536.82, 384,811.80 and 121,569.22 is: 182,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,536.82 : 384,811.80 = 121,569.22 : x
  2. Step 2: Convert to fraction form
    256,536.82/384,811.80 = 121,569.22/x
  3. Step 3: Cross multiply
    256,536.82x = 384,811.80 × 121,569.22
  4. Step 4: Simplify right side
    256,536.82x = 46,781,270,372.80
  5. Step 5: Solve for x
    x = 46,781,270,372.80/256,536.82
  6. Step 6: Final answer
    x = 182,356.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.