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Finding the Fourth Proportional to 353,946.02, 488,446.18 and 210,711.02

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Solution

The fourth proportional to 353,946.02, 488,446.18 and 210,711.02 is: 290,781.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,946.02 : 488,446.18 = 210,711.02 : x
  2. Step 2: Convert to fraction form
    353,946.02/488,446.18 = 210,711.02/x
  3. Step 3: Cross multiply
    353,946.02x = 488,446.18 × 210,711.02
  4. Step 4: Simplify right side
    353,946.02x = 102,920,992,802.90
  5. Step 5: Solve for x
    x = 102,920,992,802.90/353,946.02
  6. Step 6: Final answer
    x = 290,781.61

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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.