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Finding the Fourth Proportional to 264,602.99, 396,966.05 and 87,111.54

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Solution

The fourth proportional to 264,602.99, 396,966.05 and 87,111.54 is: 130,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,602.99 : 396,966.05 = 87,111.54 : x
  2. Step 2: Convert to fraction form
    264,602.99/396,966.05 = 87,111.54/x
  3. Step 3: Cross multiply
    264,602.99x = 396,966.05 × 87,111.54
  4. Step 4: Simplify right side
    264,602.99x = 34,580,323,507.66
  5. Step 5: Solve for x
    x = 34,580,323,507.66/264,602.99
  6. Step 6: Final answer
    x = 130,687.58

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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.