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Finding the Fourth Proportional to 251,652.64, 347,280.63 and 138,475.39

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Solution

The fourth proportional to 251,652.64, 347,280.63 and 138,475.39 is: 191,096.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,652.64 : 347,280.63 = 138,475.39 : x
  2. Step 2: Convert to fraction form
    251,652.64/347,280.63 = 138,475.39/x
  3. Step 3: Cross multiply
    251,652.64x = 347,280.63 × 138,475.39
  4. Step 4: Simplify right side
    251,652.64x = 48,089,820,678.70
  5. Step 5: Solve for x
    x = 48,089,820,678.70/251,652.64
  6. Step 6: Final answer
    x = 191,096.03

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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.