Home / 247,305.24-370,985.12-78,786.36

Finding the Fourth Proportional to 247,305.24, 370,985.12 and 78,786.36

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Solution

The fourth proportional to 247,305.24, 370,985.12 and 78,786.36 is: 118,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,305.24 : 370,985.12 = 78,786.36 : x
  2. Step 2: Convert to fraction form
    247,305.24/370,985.12 = 78,786.36/x
  3. Step 3: Cross multiply
    247,305.24x = 370,985.12 × 78,786.36
  4. Step 4: Simplify right side
    247,305.24x = 29,228,567,218.96
  5. Step 5: Solve for x
    x = 29,228,567,218.96/247,305.24
  6. Step 6: Final answer
    x = 118,188.22

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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.