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Finding the Fourth Proportional to 324,605, 486,929.58 and 99,951.56

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Solution

The fourth proportional to 324,605, 486,929.58 and 99,951.56 is: 149,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,605 : 486,929.58 = 99,951.56 : x
  2. Step 2: Convert to fraction form
    324,605/486,929.58 = 99,951.56/x
  3. Step 3: Cross multiply
    324,605x = 486,929.58 × 99,951.56
  4. Step 4: Simplify right side
    324,605x = 48,669,371,131.14
  5. Step 5: Solve for x
    x = 48,669,371,131.14/324,605
  6. Step 6: Final answer
    x = 149,934.14

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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.