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Finding the Fourth Proportional to 342,883.20, 512,866.80 and 307,599.60

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Solution

The fourth proportional to 342,883.20, 512,866.80 and 307,599.60 is: 460,091.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,883.20 : 512,866.80 = 307,599.60 : x
  2. Step 2: Convert to fraction form
    342,883.20/512,866.80 = 307,599.60/x
  3. Step 3: Cross multiply
    342,883.20x = 512,866.80 × 307,599.60
  4. Step 4: Simplify right side
    342,883.20x = 157,757,622,533.28
  5. Step 5: Solve for x
    x = 157,757,622,533.28/342,883.20
  6. Step 6: Final answer
    x = 460,091.43

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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.