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Finding the Fourth Proportional to 220,011.12, 303,615.72 and 119,409.12

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Solution

The fourth proportional to 220,011.12, 303,615.72 and 119,409.12 is: 164,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,011.12 : 303,615.72 = 119,409.12 : x
  2. Step 2: Convert to fraction form
    220,011.12/303,615.72 = 119,409.12/x
  3. Step 3: Cross multiply
    220,011.12x = 303,615.72 × 119,409.12
  4. Step 4: Simplify right side
    220,011.12x = 36,254,485,943.37
  5. Step 5: Solve for x
    x = 36,254,485,943.37/220,011.12
  6. Step 6: Final answer
    x = 164,784.79

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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.