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Finding the Fourth Proportional to 347,212.92, 478,994.94 and 203,970.36

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Solution

The fourth proportional to 347,212.92, 478,994.94 and 203,970.36 is: 281,385.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,212.92 : 478,994.94 = 203,970.36 : x
  2. Step 2: Convert to fraction form
    347,212.92/478,994.94 = 203,970.36/x
  3. Step 3: Cross multiply
    347,212.92x = 478,994.94 × 203,970.36
  4. Step 4: Simplify right side
    347,212.92x = 97,700,770,349.98
  5. Step 5: Solve for x
    x = 97,700,770,349.98/347,212.92
  6. Step 6: Final answer
    x = 281,385.76

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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.