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Finding the Fourth Proportional to 439,437.65, 606,440.28 and 248,439.65

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Solution

The fourth proportional to 439,437.65, 606,440.28 and 248,439.65 is: 342,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,437.65 : 606,440.28 = 248,439.65 : x
  2. Step 2: Convert to fraction form
    439,437.65/606,440.28 = 248,439.65/x
  3. Step 3: Cross multiply
    439,437.65x = 606,440.28 × 248,439.65
  4. Step 4: Simplify right side
    439,437.65x = 150,663,806,634.70
  5. Step 5: Solve for x
    x = 150,663,806,634.70/439,437.65
  6. Step 6: Final answer
    x = 342,855.94

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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.