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Finding the Fourth Proportional to 324,396.50, 486,699.03 and 155,929.05

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Solution

The fourth proportional to 324,396.50, 486,699.03 and 155,929.05 is: 233,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,396.50 : 486,699.03 = 155,929.05 : x
  2. Step 2: Convert to fraction form
    324,396.50/486,699.03 = 155,929.05/x
  3. Step 3: Cross multiply
    324,396.50x = 486,699.03 × 155,929.05
  4. Step 4: Simplify right side
    324,396.50x = 75,890,517,383.82
  5. Step 5: Solve for x
    x = 75,890,517,383.82/324,396.50
  6. Step 6: Final answer
    x = 233,943.70

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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.