Home / 286,661.22-430,054.32-86,997.24

Finding the Fourth Proportional to 286,661.22, 430,054.32 and 86,997.24

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Solution

The fourth proportional to 286,661.22, 430,054.32 and 86,997.24 is: 130,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,661.22 : 430,054.32 = 86,997.24 : x
  2. Step 2: Convert to fraction form
    286,661.22/430,054.32 = 86,997.24/x
  3. Step 3: Cross multiply
    286,661.22x = 430,054.32 × 86,997.24
  4. Step 4: Simplify right side
    286,661.22x = 37,413,538,890.08
  5. Step 5: Solve for x
    x = 37,413,538,890.08/286,661.22
  6. Step 6: Final answer
    x = 130,514.82

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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.