Home / 256,903.20-385,320.78-116,629.56

Finding the Fourth Proportional to 256,903.20, 385,320.78 and 116,629.56

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Solution

The fourth proportional to 256,903.20, 385,320.78 and 116,629.56 is: 174,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,903.20 : 385,320.78 = 116,629.56 : x
  2. Step 2: Convert to fraction form
    256,903.20/385,320.78 = 116,629.56/x
  3. Step 3: Cross multiply
    256,903.20x = 385,320.78 × 116,629.56
  4. Step 4: Simplify right side
    256,903.20x = 44,939,793,030.26
  5. Step 5: Solve for x
    x = 44,939,793,030.26/256,903.20
  6. Step 6: Final answer
    x = 174,928.90

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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.