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Finding the Fourth Proportional to 442,959.80, 664,245.30 and 176,631.80

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Solution

The fourth proportional to 442,959.80, 664,245.30 and 176,631.80 is: 264,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,959.80 : 664,245.30 = 176,631.80 : x
  2. Step 2: Convert to fraction form
    442,959.80/664,245.30 = 176,631.80/x
  3. Step 3: Cross multiply
    442,959.80x = 664,245.30 × 176,631.80
  4. Step 4: Simplify right side
    442,959.80x = 117,326,842,980.54
  5. Step 5: Solve for x
    x = 117,326,842,980.54/442,959.80
  6. Step 6: Final answer
    x = 264,870.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.