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Finding the Fourth Proportional to 222,740.64, 307,396.08 and 122,138.64

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Solution

The fourth proportional to 222,740.64, 307,396.08 and 122,138.64 is: 168,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,740.64 : 307,396.08 = 122,138.64 : x
  2. Step 2: Convert to fraction form
    222,740.64/307,396.08 = 122,138.64/x
  3. Step 3: Cross multiply
    222,740.64x = 307,396.08 × 122,138.64
  4. Step 4: Simplify right side
    222,740.64x = 37,544,939,152.53
  5. Step 5: Solve for x
    x = 37,544,939,152.53/222,740.64
  6. Step 6: Final answer
    x = 168,559.00

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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.