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Finding the Fourth Proportional to 140,458.60, 210,803.10 and 135,850.60

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Solution

The fourth proportional to 140,458.60, 210,803.10 and 135,850.60 is: 203,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,458.60 : 210,803.10 = 135,850.60 : x
  2. Step 2: Convert to fraction form
    140,458.60/210,803.10 = 135,850.60/x
  3. Step 3: Cross multiply
    140,458.60x = 210,803.10 × 135,850.60
  4. Step 4: Simplify right side
    140,458.60x = 28,637,727,616.86
  5. Step 5: Solve for x
    x = 28,637,727,616.86/140,458.60
  6. Step 6: Final answer
    x = 203,887.32

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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.