Home / 321,031.20-481,604.40-134,061.60

Finding the Fourth Proportional to 321,031.20, 481,604.40 and 134,061.60

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Solution

The fourth proportional to 321,031.20, 481,604.40 and 134,061.60 is: 201,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,031.20 : 481,604.40 = 134,061.60 : x
  2. Step 2: Convert to fraction form
    321,031.20/481,604.40 = 134,061.60/x
  3. Step 3: Cross multiply
    321,031.20x = 481,604.40 × 134,061.60
  4. Step 4: Simplify right side
    321,031.20x = 64,564,656,431.04
  5. Step 5: Solve for x
    x = 64,564,656,431.04/321,031.20
  6. Step 6: Final answer
    x = 201,116.45

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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.