Home / 228,629.28-342,966.78-78,849.84

Finding the Fourth Proportional to 228,629.28, 342,966.78 and 78,849.84

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Solution

The fourth proportional to 228,629.28, 342,966.78 and 78,849.84 is: 118,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,629.28 : 342,966.78 = 78,849.84 : x
  2. Step 2: Convert to fraction form
    228,629.28/342,966.78 = 78,849.84/x
  3. Step 3: Cross multiply
    228,629.28x = 342,966.78 × 78,849.84
  4. Step 4: Simplify right side
    228,629.28x = 27,042,875,728.32
  5. Step 5: Solve for x
    x = 27,042,875,728.32/228,629.28
  6. Step 6: Final answer
    x = 118,282.64

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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.