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Finding the Fourth Proportional to 202,346.37, 279,230.67 and 111,700.39

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Solution

The fourth proportional to 202,346.37, 279,230.67 and 111,700.39 is: 154,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,346.37 : 279,230.67 = 111,700.39 : x
  2. Step 2: Convert to fraction form
    202,346.37/279,230.67 = 111,700.39/x
  3. Step 3: Cross multiply
    202,346.37x = 279,230.67 × 111,700.39
  4. Step 4: Simplify right side
    202,346.37x = 31,190,174,197.96
  5. Step 5: Solve for x
    x = 31,190,174,197.96/202,346.37
  6. Step 6: Final answer
    x = 154,142.50

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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.