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Finding the Fourth Proportional to 451,636.51, 623,257.42 and 260,649.90

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Solution

The fourth proportional to 451,636.51, 623,257.42 and 260,649.90 is: 359,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,636.51 : 623,257.42 = 260,649.90 : x
  2. Step 2: Convert to fraction form
    451,636.51/623,257.42 = 260,649.90/x
  3. Step 3: Cross multiply
    451,636.51x = 623,257.42 × 260,649.90
  4. Step 4: Simplify right side
    451,636.51x = 162,451,979,777.72
  5. Step 5: Solve for x
    x = 162,451,979,777.72/451,636.51
  6. Step 6: Final answer
    x = 359,696.30

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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.