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Finding the Fourth Proportional to 304,848.20, 420,685.98 and 168,881.88

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Solution

The fourth proportional to 304,848.20, 420,685.98 and 168,881.88 is: 233,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,848.20 : 420,685.98 = 168,881.88 : x
  2. Step 2: Convert to fraction form
    304,848.20/420,685.98 = 168,881.88/x
  3. Step 3: Cross multiply
    304,848.20x = 420,685.98 × 168,881.88
  4. Step 4: Simplify right side
    304,848.20x = 71,046,239,192.04
  5. Step 5: Solve for x
    x = 71,046,239,192.04/304,848.20
  6. Step 6: Final answer
    x = 233,054.48

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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.