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Finding the Fourth Proportional to 304,958.93, 420,809.18 and 168,958.91

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Solution

The fourth proportional to 304,958.93, 420,809.18 and 168,958.91 is: 233,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,958.93 : 420,809.18 = 168,958.91 : x
  2. Step 2: Convert to fraction form
    304,958.93/420,809.18 = 168,958.91/x
  3. Step 3: Cross multiply
    304,958.93x = 420,809.18 × 168,958.91
  4. Step 4: Simplify right side
    304,958.93x = 71,099,460,578.02
  5. Step 5: Solve for x
    x = 71,099,460,578.02/304,958.93
  6. Step 6: Final answer
    x = 233,144.38

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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.