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Finding the Fourth Proportional to 439,304.80, 606,271.44 and 248,319.76

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Solution

The fourth proportional to 439,304.80, 606,271.44 and 248,319.76 is: 342,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,304.80 : 606,271.44 = 248,319.76 : x
  2. Step 2: Convert to fraction form
    439,304.80/606,271.44 = 248,319.76/x
  3. Step 3: Cross multiply
    439,304.80x = 606,271.44 × 248,319.76
  4. Step 4: Simplify right side
    439,304.80x = 150,549,178,475.65
  5. Step 5: Solve for x
    x = 150,549,178,475.65/439,304.80
  6. Step 6: Final answer
    x = 342,698.69

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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.