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Finding the Fourth Proportional to 239,136.40, 358,704.60 and 164,486.80

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Solution

The fourth proportional to 239,136.40, 358,704.60 and 164,486.80 is: 246,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,136.40 : 358,704.60 = 164,486.80 : x
  2. Step 2: Convert to fraction form
    239,136.40/358,704.60 = 164,486.80/x
  3. Step 3: Cross multiply
    239,136.40x = 358,704.60 × 164,486.80
  4. Step 4: Simplify right side
    239,136.40x = 59,002,171,799.28
  5. Step 5: Solve for x
    x = 59,002,171,799.28/239,136.40
  6. Step 6: Final answer
    x = 246,730.20

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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.