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Finding the Fourth Proportional to 351,280.80, 526,921.20 and 225,309.60

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Solution

The fourth proportional to 351,280.80, 526,921.20 and 225,309.60 is: 337,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,280.80 : 526,921.20 = 225,309.60 : x
  2. Step 2: Convert to fraction form
    351,280.80/526,921.20 = 225,309.60/x
  3. Step 3: Cross multiply
    351,280.80x = 526,921.20 × 225,309.60
  4. Step 4: Simplify right side
    351,280.80x = 118,720,404,803.52
  5. Step 5: Solve for x
    x = 118,720,404,803.52/351,280.80
  6. Step 6: Final answer
    x = 337,964.40

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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.