Home / 220,236.53-330,376.59-70,439.18

Finding the Fourth Proportional to 220,236.53, 330,376.59 and 70,439.18

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Solution

The fourth proportional to 220,236.53, 330,376.59 and 70,439.18 is: 105,665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,236.53 : 330,376.59 = 70,439.18 : x
  2. Step 2: Convert to fraction form
    220,236.53/330,376.59 = 70,439.18/x
  3. Step 3: Cross multiply
    220,236.53x = 330,376.59 × 70,439.18
  4. Step 4: Simplify right side
    220,236.53x = 23,271,454,438.91
  5. Step 5: Solve for x
    x = 23,271,454,438.91/220,236.53
  6. Step 6: Final answer
    x = 105,665.74

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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.