Home / 296,837.16-445,260.60-86,486.64

Finding the Fourth Proportional to 296,837.16, 445,260.60 and 86,486.64

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Solution

The fourth proportional to 296,837.16, 445,260.60 and 86,486.64 is: 129,731.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,837.16 : 445,260.60 = 86,486.64 : x
  2. Step 2: Convert to fraction form
    296,837.16/445,260.60 = 86,486.64/x
  3. Step 3: Cross multiply
    296,837.16x = 445,260.60 × 86,486.64
  4. Step 4: Simplify right side
    296,837.16x = 38,509,093,218.38
  5. Step 5: Solve for x
    x = 38,509,093,218.38/296,837.16
  6. Step 6: Final answer
    x = 129,731.38

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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.