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Finding the Fourth Proportional to 220,527.81, 330,901.02 and 87,405.12

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Solution

The fourth proportional to 220,527.81, 330,901.02 and 87,405.12 is: 131,151.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,527.81 : 330,901.02 = 87,405.12 : x
  2. Step 2: Convert to fraction form
    220,527.81/330,901.02 = 87,405.12/x
  3. Step 3: Cross multiply
    220,527.81x = 330,901.02 × 87,405.12
  4. Step 4: Simplify right side
    220,527.81x = 28,922,443,361.22
  5. Step 5: Solve for x
    x = 28,922,443,361.22/220,527.81
  6. Step 6: Final answer
    x = 131,151.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.