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Finding the Fourth Proportional to 247,228.65, 370,720.29 and 78,727.02

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Solution

The fourth proportional to 247,228.65, 370,720.29 and 78,727.02 is: 118,051.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,228.65 : 370,720.29 = 78,727.02 : x
  2. Step 2: Convert to fraction form
    247,228.65/370,720.29 = 78,727.02/x
  3. Step 3: Cross multiply
    247,228.65x = 370,720.29 × 78,727.02
  4. Step 4: Simplify right side
    247,228.65x = 29,185,703,685.24
  5. Step 5: Solve for x
    x = 29,185,703,685.24/247,228.65
  6. Step 6: Final answer
    x = 118,051.46

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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.