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Finding the Fourth Proportional to 354,878.03, 532,815.26 and 338,809.65

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Solution

The fourth proportional to 354,878.03, 532,815.26 and 338,809.65 is: 508,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,878.03 : 532,815.26 = 338,809.65 : x
  2. Step 2: Convert to fraction form
    354,878.03/532,815.26 = 338,809.65/x
  3. Step 3: Cross multiply
    354,878.03x = 532,815.26 × 338,809.65
  4. Step 4: Simplify right side
    354,878.03x = 180,522,950,061.21
  5. Step 5: Solve for x
    x = 180,522,950,061.21/354,878.03
  6. Step 6: Final answer
    x = 508,690.13

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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.