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Finding the Fourth Proportional to 323,243.46, 484,821.45 and 86,588.19

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Solution

The fourth proportional to 323,243.46, 484,821.45 and 86,588.19 is: 129,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,243.46 : 484,821.45 = 86,588.19 : x
  2. Step 2: Convert to fraction form
    323,243.46/484,821.45 = 86,588.19/x
  3. Step 3: Cross multiply
    323,243.46x = 484,821.45 × 86,588.19
  4. Step 4: Simplify right side
    323,243.46x = 41,979,811,828.68
  5. Step 5: Solve for x
    x = 41,979,811,828.68/323,243.46
  6. Step 6: Final answer
    x = 129,870.57

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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.