Home / 292,286.20-438,429.30-197,807.80

Finding the Fourth Proportional to 292,286.20, 438,429.30 and 197,807.80

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Solution

The fourth proportional to 292,286.20, 438,429.30 and 197,807.80 is: 296,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,286.20 : 438,429.30 = 197,807.80 : x
  2. Step 2: Convert to fraction form
    292,286.20/438,429.30 = 197,807.80/x
  3. Step 3: Cross multiply
    292,286.20x = 438,429.30 × 197,807.80
  4. Step 4: Simplify right side
    292,286.20x = 86,724,735,288.54
  5. Step 5: Solve for x
    x = 86,724,735,288.54/292,286.20
  6. Step 6: Final answer
    x = 296,711.70

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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.