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Finding the Fourth Proportional to 324,330, 486,371.07 and 155,802.30

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Solution

The fourth proportional to 324,330, 486,371.07 and 155,802.30 is: 233,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,330 : 486,371.07 = 155,802.30 : x
  2. Step 2: Convert to fraction form
    324,330/486,371.07 = 155,802.30/x
  3. Step 3: Cross multiply
    324,330x = 486,371.07 × 155,802.30
  4. Step 4: Simplify right side
    324,330x = 75,777,731,359.46
  5. Step 5: Solve for x
    x = 75,777,731,359.46/324,330
  6. Step 6: Final answer
    x = 233,643.92

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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.