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Finding the Fourth Proportional to 354,044.85, 488,584.08 and 210,810.93

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Solution

The fourth proportional to 354,044.85, 488,584.08 and 210,810.93 is: 290,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,044.85 : 488,584.08 = 210,810.93 : x
  2. Step 2: Convert to fraction form
    354,044.85/488,584.08 = 210,810.93/x
  3. Step 3: Cross multiply
    354,044.85x = 488,584.08 × 210,810.93
  4. Step 4: Simplify right side
    354,044.85x = 102,998,864,287.99
  5. Step 5: Solve for x
    x = 102,998,864,287.99/354,044.85
  6. Step 6: Final answer
    x = 290,920.39

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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.