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Finding the Fourth Proportional to 256,950.67, 385,293.18 and 112,797.49

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Solution

The fourth proportional to 256,950.67, 385,293.18 and 112,797.49 is: 169,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,950.67 : 385,293.18 = 112,797.49 : x
  2. Step 2: Convert to fraction form
    256,950.67/385,293.18 = 112,797.49/x
  3. Step 3: Cross multiply
    256,950.67x = 385,293.18 × 112,797.49
  4. Step 4: Simplify right side
    256,950.67x = 43,460,103,618.12
  5. Step 5: Solve for x
    x = 43,460,103,618.12/256,950.67
  6. Step 6: Final answer
    x = 169,137.93

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1.5x scale

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.