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Finding the Fourth Proportional to 304,804.89, 420,634.13 and 168,840.92

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Solution

The fourth proportional to 304,804.89, 420,634.13 and 168,840.92 is: 233,002.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,804.89 : 420,634.13 = 168,840.92 : x
  2. Step 2: Convert to fraction form
    304,804.89/420,634.13 = 168,840.92/x
  3. Step 3: Cross multiply
    304,804.89x = 420,634.13 × 168,840.92
  4. Step 4: Simplify right side
    304,804.89x = 71,020,253,699.98
  5. Step 5: Solve for x
    x = 71,020,253,699.98/304,804.89
  6. Step 6: Final answer
    x = 233,002.34

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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.