Home / 256,943.09-385,440.30-88,441.12

Finding the Fourth Proportional to 256,943.09, 385,440.30 and 88,441.12

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Solution

The fourth proportional to 256,943.09, 385,440.30 and 88,441.12 is: 132,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,943.09 : 385,440.30 = 88,441.12 : x
  2. Step 2: Convert to fraction form
    256,943.09/385,440.30 = 88,441.12/x
  3. Step 3: Cross multiply
    256,943.09x = 385,440.30 × 88,441.12
  4. Step 4: Simplify right side
    256,943.09x = 34,088,769,890.09
  5. Step 5: Solve for x
    x = 34,088,769,890.09/256,943.09
  6. Step 6: Final answer
    x = 132,670.51

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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.