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Finding the Fourth Proportional to 274,200.64, 378,310.80 and 153,325.60

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Solution

The fourth proportional to 274,200.64, 378,310.80 and 153,325.60 is: 211,541.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,200.64 : 378,310.80 = 153,325.60 : x
  2. Step 2: Convert to fraction form
    274,200.64/378,310.80 = 153,325.60/x
  3. Step 3: Cross multiply
    274,200.64x = 378,310.80 × 153,325.60
  4. Step 4: Simplify right side
    274,200.64x = 58,004,730,396.48
  5. Step 5: Solve for x
    x = 58,004,730,396.48/274,200.64
  6. Step 6: Final answer
    x = 211,541.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.