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Finding the Fourth Proportional to 250,468.64, 345,682.12 and 155,006.08

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Solution

The fourth proportional to 250,468.64, 345,682.12 and 155,006.08 is: 213,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,468.64 : 345,682.12 = 155,006.08 : x
  2. Step 2: Convert to fraction form
    250,468.64/345,682.12 = 155,006.08/x
  3. Step 3: Cross multiply
    250,468.64x = 345,682.12 × 155,006.08
  4. Step 4: Simplify right side
    250,468.64x = 53,582,830,347.29
  5. Step 5: Solve for x
    x = 53,582,830,347.29/250,468.64
  6. Step 6: Final answer
    x = 213,930.30

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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.