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Finding the Fourth Proportional to 293,898.20, 439,925.70 and 210,954.20

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Solution

The fourth proportional to 293,898.20, 439,925.70 and 210,954.20 is: 315,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,898.20 : 439,925.70 = 210,954.20 : x
  2. Step 2: Convert to fraction form
    293,898.20/439,925.70 = 210,954.20/x
  3. Step 3: Cross multiply
    293,898.20x = 439,925.70 × 210,954.20
  4. Step 4: Simplify right side
    293,898.20x = 92,804,174,102.94
  5. Step 5: Solve for x
    x = 92,804,174,102.94/293,898.20
  6. Step 6: Final answer
    x = 315,769.79

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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.