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Finding the Fourth Proportional to 342,757.20, 514,135.80 and 202,443.60

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Solution

The fourth proportional to 342,757.20, 514,135.80 and 202,443.60 is: 303,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,757.20 : 514,135.80 = 202,443.60 : x
  2. Step 2: Convert to fraction form
    342,757.20/514,135.80 = 202,443.60/x
  3. Step 3: Cross multiply
    342,757.20x = 514,135.80 × 202,443.60
  4. Step 4: Simplify right side
    342,757.20x = 104,083,502,240.88
  5. Step 5: Solve for x
    x = 104,083,502,240.88/342,757.20
  6. Step 6: Final answer
    x = 303,665.40

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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.