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Finding the Fourth Proportional to 309,300.53, 426,712.94 and 192,946.29

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Solution

The fourth proportional to 309,300.53, 426,712.94 and 192,946.29 is: 266,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,300.53 : 426,712.94 = 192,946.29 : x
  2. Step 2: Convert to fraction form
    309,300.53/426,712.94 = 192,946.29/x
  3. Step 3: Cross multiply
    309,300.53x = 426,712.94 × 192,946.29
  4. Step 4: Simplify right side
    309,300.53x = 82,332,677,911.96
  5. Step 5: Solve for x
    x = 82,332,677,911.96/309,300.53
  6. Step 6: Final answer
    x = 266,189.91

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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.