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Finding the Fourth Proportional to 285,467.30, 428,200.95 and 167,272.10

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Solution

The fourth proportional to 285,467.30, 428,200.95 and 167,272.10 is: 250,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,467.30 : 428,200.95 = 167,272.10 : x
  2. Step 2: Convert to fraction form
    285,467.30/428,200.95 = 167,272.10/x
  3. Step 3: Cross multiply
    285,467.30x = 428,200.95 × 167,272.10
  4. Step 4: Simplify right side
    285,467.30x = 71,626,072,128.50
  5. Step 5: Solve for x
    x = 71,626,072,128.50/285,467.30
  6. Step 6: Final answer
    x = 250,908.15

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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.