Home / 305,942.79-422,176.29-176,889.55

Finding the Fourth Proportional to 305,942.79, 422,176.29 and 176,889.55

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Solution

The fourth proportional to 305,942.79, 422,176.29 and 176,889.55 is: 244,093.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,942.79 : 422,176.29 = 176,889.55 : x
  2. Step 2: Convert to fraction form
    305,942.79/422,176.29 = 176,889.55/x
  3. Step 3: Cross multiply
    305,942.79x = 422,176.29 × 176,889.55
  4. Step 4: Simplify right side
    305,942.79x = 74,678,573,336.71
  5. Step 5: Solve for x
    x = 74,678,573,336.71/305,942.79
  6. Step 6: Final answer
    x = 244,093.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.