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Finding the Fourth Proportional to 323,238.36, 484,857.23 and 86,574.59

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Solution

The fourth proportional to 323,238.36, 484,857.23 and 86,574.59 is: 129,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,238.36 : 484,857.23 = 86,574.59 : x
  2. Step 2: Convert to fraction form
    323,238.36/484,857.23 = 86,574.59/x
  3. Step 3: Cross multiply
    323,238.36x = 484,857.23 × 86,574.59
  4. Step 4: Simplify right side
    323,238.36x = 41,976,313,038.63
  5. Step 5: Solve for x
    x = 41,976,313,038.63/323,238.36
  6. Step 6: Final answer
    x = 129,861.79

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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.