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Finding the Fourth Proportional to 242,990.02, 335,145.13 and 178,438.90

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Solution

The fourth proportional to 242,990.02, 335,145.13 and 178,438.90 is: 246,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,990.02 : 335,145.13 = 178,438.90 : x
  2. Step 2: Convert to fraction form
    242,990.02/335,145.13 = 178,438.90/x
  3. Step 3: Cross multiply
    242,990.02x = 335,145.13 × 178,438.90
  4. Step 4: Simplify right side
    242,990.02x = 59,802,928,337.56
  5. Step 5: Solve for x
    x = 59,802,928,337.56/242,990.02
  6. Step 6: Final answer
    x = 246,112.69

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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.