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Finding the Fourth Proportional to 353,755.35, 488,106.54 and 210,487.41

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Solution

The fourth proportional to 353,755.35, 488,106.54 and 210,487.41 is: 290,427.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,755.35 : 488,106.54 = 210,487.41 : x
  2. Step 2: Convert to fraction form
    353,755.35/488,106.54 = 210,487.41/x
  3. Step 3: Cross multiply
    353,755.35x = 488,106.54 × 210,487.41
  4. Step 4: Simplify right side
    353,755.35x = 102,740,281,408.66
  5. Step 5: Solve for x
    x = 102,740,281,408.66/353,755.35
  6. Step 6: Final answer
    x = 290,427.50

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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.