Home / 277,003.12-415,356.96-143,749.20

Finding the Fourth Proportional to 277,003.12, 415,356.96 and 143,749.20

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Solution

The fourth proportional to 277,003.12, 415,356.96 and 143,749.20 is: 215,547.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,003.12 : 415,356.96 = 143,749.20 : x
  2. Step 2: Convert to fraction form
    277,003.12/415,356.96 = 143,749.20/x
  3. Step 3: Cross multiply
    277,003.12x = 415,356.96 × 143,749.20
  4. Step 4: Simplify right side
    277,003.12x = 59,707,230,714.43
  5. Step 5: Solve for x
    x = 59,707,230,714.43/277,003.12
  6. Step 6: Final answer
    x = 215,547.14

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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.