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Finding the Fourth Proportional to 248,911.80, 373,367.70 and 154,217.40

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Solution

The fourth proportional to 248,911.80, 373,367.70 and 154,217.40 is: 231,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,911.80 : 373,367.70 = 154,217.40 : x
  2. Step 2: Convert to fraction form
    248,911.80/373,367.70 = 154,217.40/x
  3. Step 3: Cross multiply
    248,911.80x = 373,367.70 × 154,217.40
  4. Step 4: Simplify right side
    248,911.80x = 57,579,795,937.98
  5. Step 5: Solve for x
    x = 57,579,795,937.98/248,911.80
  6. Step 6: Final answer
    x = 231,326.10

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1.5x scale

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.