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Finding the Fourth Proportional to 252,783.60, 379,612.80 and 134,685.60

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Solution

The fourth proportional to 252,783.60, 379,612.80 and 134,685.60 is: 202,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,783.60 : 379,612.80 = 134,685.60 : x
  2. Step 2: Convert to fraction form
    252,783.60/379,612.80 = 134,685.60/x
  3. Step 3: Cross multiply
    252,783.60x = 379,612.80 × 134,685.60
  4. Step 4: Simplify right side
    252,783.60x = 51,128,377,735.68
  5. Step 5: Solve for x
    x = 51,128,377,735.68/252,783.60
  6. Step 6: Final answer
    x = 202,261.45

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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.