Home / 296,837.91-445,261.73-86,487.39

Finding the Fourth Proportional to 296,837.91, 445,261.73 and 86,487.39

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Solution

The fourth proportional to 296,837.91, 445,261.73 and 86,487.39 is: 129,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,837.91 : 445,261.73 = 86,487.39 : x
  2. Step 2: Convert to fraction form
    296,837.91/445,261.73 = 86,487.39/x
  3. Step 3: Cross multiply
    296,837.91x = 445,261.73 × 86,487.39
  4. Step 4: Simplify right side
    296,837.91x = 38,509,524,462.15
  5. Step 5: Solve for x
    x = 38,509,524,462.15/296,837.91
  6. Step 6: Final answer
    x = 129,732.50

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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.