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Finding the Fourth Proportional to 439,145.50, 606,012.92 and 248,154.79

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Solution

The fourth proportional to 439,145.50, 606,012.92 and 248,154.79 is: 342,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,145.50 : 606,012.92 = 248,154.79 : x
  2. Step 2: Convert to fraction form
    439,145.50/606,012.92 = 248,154.79/x
  3. Step 3: Cross multiply
    439,145.50x = 606,012.92 × 248,154.79
  4. Step 4: Simplify right side
    439,145.50x = 150,385,007,513.00
  5. Step 5: Solve for x
    x = 150,385,007,513.00/439,145.50
  6. Step 6: Final answer
    x = 342,449.16

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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.