Home / 326,939.84-490,306.08-105,272

Finding the Fourth Proportional to 326,939.84, 490,306.08 and 105,272

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Solution

The fourth proportional to 326,939.84, 490,306.08 and 105,272 is: 157,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,939.84 : 490,306.08 = 105,272 : x
  2. Step 2: Convert to fraction form
    326,939.84/490,306.08 = 105,272/x
  3. Step 3: Cross multiply
    326,939.84x = 490,306.08 × 105,272
  4. Step 4: Simplify right side
    326,939.84x = 51,615,501,653.76
  5. Step 5: Solve for x
    x = 51,615,501,653.76/326,939.84
  6. Step 6: Final answer
    x = 157,874.62

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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.