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Finding the Fourth Proportional to 308,846.43, 462,594.80 and 128,384.75

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Solution

The fourth proportional to 308,846.43, 462,594.80 and 128,384.75 is: 192,296.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,846.43 : 462,594.80 = 128,384.75 : x
  2. Step 2: Convert to fraction form
    308,846.43/462,594.80 = 128,384.75/x
  3. Step 3: Cross multiply
    308,846.43x = 462,594.80 × 128,384.75
  4. Step 4: Simplify right side
    308,846.43x = 59,390,114,794.40
  5. Step 5: Solve for x
    x = 59,390,114,794.40/308,846.43
  6. Step 6: Final answer
    x = 192,296.59

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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.