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Finding the Fourth Proportional to 245,099.02, 338,236.84 and 137,669.14

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Solution

The fourth proportional to 245,099.02, 338,236.84 and 137,669.14 is: 189,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,099.02 : 338,236.84 = 137,669.14 : x
  2. Step 2: Convert to fraction form
    245,099.02/338,236.84 = 137,669.14/x
  3. Step 3: Cross multiply
    245,099.02x = 338,236.84 × 137,669.14
  4. Step 4: Simplify right side
    245,099.02x = 46,564,773,571.42
  5. Step 5: Solve for x
    x = 46,564,773,571.42/245,099.02
  6. Step 6: Final answer
    x = 189,983.52

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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.