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Finding the Fourth Proportional to 442,886.35, 664,329.53 and 255,679.15

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Solution

The fourth proportional to 442,886.35, 664,329.53 and 255,679.15 is: 383,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,886.35 : 664,329.53 = 255,679.15 : x
  2. Step 2: Convert to fraction form
    442,886.35/664,329.53 = 255,679.15/x
  3. Step 3: Cross multiply
    442,886.35x = 664,329.53 × 255,679.15
  4. Step 4: Simplify right side
    442,886.35x = 169,855,208,271.90
  5. Step 5: Solve for x
    x = 169,855,208,271.90/442,886.35
  6. Step 6: Final answer
    x = 383,518.73

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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.