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Finding the Fourth Proportional to 374,430.60, 561,645.90 and 108,199.80

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Solution

The fourth proportional to 374,430.60, 561,645.90 and 108,199.80 is: 162,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,430.60 : 561,645.90 = 108,199.80 : x
  2. Step 2: Convert to fraction form
    374,430.60/561,645.90 = 108,199.80/x
  3. Step 3: Cross multiply
    374,430.60x = 561,645.90 × 108,199.80
  4. Step 4: Simplify right side
    374,430.60x = 60,769,974,050.82
  5. Step 5: Solve for x
    x = 60,769,974,050.82/374,430.60
  6. Step 6: Final answer
    x = 162,299.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.