Home / 387,181.58-534,316.87-215,110.64

Finding the Fourth Proportional to 387,181.58, 534,316.87 and 215,110.64

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Solution

The fourth proportional to 387,181.58, 534,316.87 and 215,110.64 is: 296,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,181.58 : 534,316.87 = 215,110.64 : x
  2. Step 2: Convert to fraction form
    387,181.58/534,316.87 = 215,110.64/x
  3. Step 3: Cross multiply
    387,181.58x = 534,316.87 × 215,110.64
  4. Step 4: Simplify right side
    387,181.58x = 114,937,245,473.18
  5. Step 5: Solve for x
    x = 114,937,245,473.18/387,181.58
  6. Step 6: Final answer
    x = 296,856.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.