Home / 256,823.83-354,559.42-154,875.11

Finding the Fourth Proportional to 256,823.83, 354,559.42 and 154,875.11

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Solution

The fourth proportional to 256,823.83, 354,559.42 and 154,875.11 is: 213,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,823.83 : 354,559.42 = 154,875.11 : x
  2. Step 2: Convert to fraction form
    256,823.83/354,559.42 = 154,875.11/x
  3. Step 3: Cross multiply
    256,823.83x = 354,559.42 × 154,875.11
  4. Step 4: Simplify right side
    256,823.83x = 54,912,429,174.04
  5. Step 5: Solve for x
    x = 54,912,429,174.04/256,823.83
  6. Step 6: Final answer
    x = 213,813.61

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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.