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Finding the Fourth Proportional to 253,873.46, 350,331.14 and 139,130.24

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Solution

The fourth proportional to 253,873.46, 350,331.14 and 139,130.24 is: 191,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,873.46 : 350,331.14 = 139,130.24 : x
  2. Step 2: Convert to fraction form
    253,873.46/350,331.14 = 139,130.24/x
  3. Step 3: Cross multiply
    253,873.46x = 350,331.14 × 139,130.24
  4. Step 4: Simplify right side
    253,873.46x = 48,741,654,183.84
  5. Step 5: Solve for x
    x = 48,741,654,183.84/253,873.46
  6. Step 6: Final answer
    x = 191,991.92

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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.