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Finding the Fourth Proportional to 304,516.30, 420,221.76 and 168,550.51

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Solution

The fourth proportional to 304,516.30, 420,221.76 and 168,550.51 is: 232,593.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,516.30 : 420,221.76 = 168,550.51 : x
  2. Step 2: Convert to fraction form
    304,516.30/420,221.76 = 168,550.51/x
  3. Step 3: Cross multiply
    304,516.30x = 420,221.76 × 168,550.51
  4. Step 4: Simplify right side
    304,516.30x = 70,828,589,859.99
  5. Step 5: Solve for x
    x = 70,828,589,859.99/304,516.30
  6. Step 6: Final answer
    x = 232,593.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.