Home / 230,547.81-345,977.13-80,789.45

Finding the Fourth Proportional to 230,547.81, 345,977.13 and 80,789.45

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Solution

The fourth proportional to 230,547.81, 345,977.13 and 80,789.45 is: 121,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,547.81 : 345,977.13 = 80,789.45 : x
  2. Step 2: Convert to fraction form
    230,547.81/345,977.13 = 80,789.45/x
  3. Step 3: Cross multiply
    230,547.81x = 345,977.13 × 80,789.45
  4. Step 4: Simplify right side
    230,547.81x = 27,951,300,315.39
  5. Step 5: Solve for x
    x = 27,951,300,315.39/230,547.81
  6. Step 6: Final answer
    x = 121,238.63

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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.