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Finding the Fourth Proportional to 287,585.44, 396,851.40 and 165,051.88

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Solution

The fourth proportional to 287,585.44, 396,851.40 and 165,051.88 is: 227,762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,585.44 : 396,851.40 = 165,051.88 : x
  2. Step 2: Convert to fraction form
    287,585.44/396,851.40 = 165,051.88/x
  3. Step 3: Cross multiply
    287,585.44x = 396,851.40 × 165,051.88
  4. Step 4: Simplify right side
    287,585.44x = 65,501,068,658.50
  5. Step 5: Solve for x
    x = 65,501,068,658.50/287,585.44
  6. Step 6: Final answer
    x = 227,762.12

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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.