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Finding the Fourth Proportional to 374,210.70, 561,206.70 and 134,296.80

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Solution

The fourth proportional to 374,210.70, 561,206.70 and 134,296.80 is: 201,405.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,210.70 : 561,206.70 = 134,296.80 : x
  2. Step 2: Convert to fraction form
    374,210.70/561,206.70 = 134,296.80/x
  3. Step 3: Cross multiply
    374,210.70x = 561,206.70 × 134,296.80
  4. Step 4: Simplify right side
    374,210.70x = 75,368,263,948.56
  5. Step 5: Solve for x
    x = 75,368,263,948.56/374,210.70
  6. Step 6: Final answer
    x = 201,405.96

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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.