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Finding the Fourth Proportional to 248,121.92, 342,401.76 and 144,775.88

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Solution

The fourth proportional to 248,121.92, 342,401.76 and 144,775.88 is: 199,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,121.92 : 342,401.76 = 144,775.88 : x
  2. Step 2: Convert to fraction form
    248,121.92/342,401.76 = 144,775.88/x
  3. Step 3: Cross multiply
    248,121.92x = 342,401.76 × 144,775.88
  4. Step 4: Simplify right side
    248,121.92x = 49,571,516,117.55
  5. Step 5: Solve for x
    x = 49,571,516,117.55/248,121.92
  6. Step 6: Final answer
    x = 199,786.93

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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.