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Finding the Fourth Proportional to 263,562.88, 395,368.62 and 86,070.82

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Solution

The fourth proportional to 263,562.88, 395,368.62 and 86,070.82 is: 129,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,562.88 : 395,368.62 = 86,070.82 : x
  2. Step 2: Convert to fraction form
    263,562.88/395,368.62 = 86,070.82/x
  3. Step 3: Cross multiply
    263,562.88x = 395,368.62 × 86,070.82
  4. Step 4: Simplify right side
    263,562.88x = 34,029,700,337.25
  5. Step 5: Solve for x
    x = 34,029,700,337.25/263,562.88
  6. Step 6: Final answer
    x = 129,114.16

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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.