Home / 256,811.40-385,217.10-151,576.20

Finding the Fourth Proportional to 256,811.40, 385,217.10 and 151,576.20

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Solution

The fourth proportional to 256,811.40, 385,217.10 and 151,576.20 is: 227,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,811.40 : 385,217.10 = 151,576.20 : x
  2. Step 2: Convert to fraction form
    256,811.40/385,217.10 = 151,576.20/x
  3. Step 3: Cross multiply
    256,811.40x = 385,217.10 × 151,576.20
  4. Step 4: Simplify right side
    256,811.40x = 58,389,744,193.02
  5. Step 5: Solve for x
    x = 58,389,744,193.02/256,811.40
  6. Step 6: Final answer
    x = 227,364.30

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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.