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Finding the Fourth Proportional to 304,960.22, 420,838.71 and 168,992.90

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Solution

The fourth proportional to 304,960.22, 420,838.71 and 168,992.90 is: 233,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,960.22 : 420,838.71 = 168,992.90 : x
  2. Step 2: Convert to fraction form
    304,960.22/420,838.71 = 168,992.90/x
  3. Step 3: Cross multiply
    304,960.22x = 420,838.71 × 168,992.90
  4. Step 4: Simplify right side
    304,960.22x = 71,118,754,035.16
  5. Step 5: Solve for x
    x = 71,118,754,035.16/304,960.22
  6. Step 6: Final answer
    x = 233,206.66

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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.