Home / 256,844.20-385,703.70-168,489.40

Finding the Fourth Proportional to 256,844.20, 385,703.70 and 168,489.40

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Solution

The fourth proportional to 256,844.20, 385,703.70 and 168,489.40 is: 253,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,844.20 : 385,703.70 = 168,489.40 : x
  2. Step 2: Convert to fraction form
    256,844.20/385,703.70 = 168,489.40/x
  3. Step 3: Cross multiply
    256,844.20x = 385,703.70 × 168,489.40
  4. Step 4: Simplify right side
    256,844.20x = 64,986,984,990.78
  5. Step 5: Solve for x
    x = 64,986,984,990.78/256,844.20
  6. Step 6: Final answer
    x = 253,021.03

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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.