Home / 222,501.20-307,051.80-120,526.88

Finding the Fourth Proportional to 222,501.20, 307,051.80 and 120,526.88

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Solution

The fourth proportional to 222,501.20, 307,051.80 and 120,526.88 is: 166,327.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,501.20 : 307,051.80 = 120,526.88 : x
  2. Step 2: Convert to fraction form
    222,501.20/307,051.80 = 120,526.88/x
  3. Step 3: Cross multiply
    222,501.20x = 307,051.80 × 120,526.88
  4. Step 4: Simplify right side
    222,501.20x = 37,007,995,452.38
  5. Step 5: Solve for x
    x = 37,007,995,452.38/222,501.20
  6. Step 6: Final answer
    x = 166,327.17

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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.