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Finding the Fourth Proportional to 353,752.11, 488,101.95 and 210,484.17

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Solution

The fourth proportional to 353,752.11, 488,101.95 and 210,484.17 is: 290,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,752.11 : 488,101.95 = 210,484.17 : x
  2. Step 2: Convert to fraction form
    353,752.11/488,101.95 = 210,484.17/x
  3. Step 3: Cross multiply
    353,752.11x = 488,101.95 × 210,484.17
  4. Step 4: Simplify right side
    353,752.11x = 102,737,733,821.13
  5. Step 5: Solve for x
    x = 102,737,733,821.13/353,752.11
  6. Step 6: Final answer
    x = 290,422.96

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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.