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Finding the Fourth Proportional to 295,979.80, 443,969.70 and 109,064.20

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Solution

The fourth proportional to 295,979.80, 443,969.70 and 109,064.20 is: 163,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,979.80 : 443,969.70 = 109,064.20 : x
  2. Step 2: Convert to fraction form
    295,979.80/443,969.70 = 109,064.20/x
  3. Step 3: Cross multiply
    295,979.80x = 443,969.70 × 109,064.20
  4. Step 4: Simplify right side
    295,979.80x = 48,421,200,154.74
  5. Step 5: Solve for x
    x = 48,421,200,154.74/295,979.80
  6. Step 6: Final answer
    x = 163,596.30

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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.