Home / 256,818.40-354,191.94-154,821.51

Finding the Fourth Proportional to 256,818.40, 354,191.94 and 154,821.51

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Solution

The fourth proportional to 256,818.40, 354,191.94 and 154,821.51 is: 213,522.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,818.40 : 354,191.94 = 154,821.51 : x
  2. Step 2: Convert to fraction form
    256,818.40/354,191.94 = 154,821.51/x
  3. Step 3: Cross multiply
    256,818.40x = 354,191.94 × 154,821.51
  4. Step 4: Simplify right side
    256,818.40x = 54,836,530,980.63
  5. Step 5: Solve for x
    x = 54,836,530,980.63/256,818.40
  6. Step 6: Final answer
    x = 213,522.60

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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.