Home / 222,657.12-307,268.64-122,055.84

Finding the Fourth Proportional to 222,657.12, 307,268.64 and 122,055.84

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Solution

The fourth proportional to 222,657.12, 307,268.64 and 122,055.84 is: 168,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,657.12 : 307,268.64 = 122,055.84 : x
  2. Step 2: Convert to fraction form
    222,657.12/307,268.64 = 122,055.84/x
  3. Step 3: Cross multiply
    222,657.12x = 307,268.64 × 122,055.84
  4. Step 4: Simplify right side
    222,657.12x = 37,503,931,960.86
  5. Step 5: Solve for x
    x = 37,503,931,960.86/222,657.12
  6. Step 6: Final answer
    x = 168,438.05

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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.