Home / 247,291.28-370,929.96-78,821.70

Finding the Fourth Proportional to 247,291.28, 370,929.96 and 78,821.70

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Solution

The fourth proportional to 247,291.28, 370,929.96 and 78,821.70 is: 118,230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,291.28 : 370,929.96 = 78,821.70 : x
  2. Step 2: Convert to fraction form
    247,291.28/370,929.96 = 78,821.70/x
  3. Step 3: Cross multiply
    247,291.28x = 370,929.96 × 78,821.70
  4. Step 4: Simplify right side
    247,291.28x = 29,237,331,152.51
  5. Step 5: Solve for x
    x = 29,237,331,152.51/247,291.28
  6. Step 6: Final answer
    x = 118,230.34

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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.