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Finding the Fourth Proportional to 366,141.60, 505,328.76 and 211,063.05

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Solution

The fourth proportional to 366,141.60, 505,328.76 and 211,063.05 is: 291,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,141.60 : 505,328.76 = 211,063.05 : x
  2. Step 2: Convert to fraction form
    366,141.60/505,328.76 = 211,063.05/x
  3. Step 3: Cross multiply
    366,141.60x = 505,328.76 × 211,063.05
  4. Step 4: Simplify right side
    366,141.60x = 106,656,229,338.32
  5. Step 5: Solve for x
    x = 106,656,229,338.32/366,141.60
  6. Step 6: Final answer
    x = 291,297.76

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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.