Home / 220,215.44-330,318.64-70,455.72

Finding the Fourth Proportional to 220,215.44, 330,318.64 and 70,455.72

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Solution

The fourth proportional to 220,215.44, 330,318.64 and 70,455.72 is: 105,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,215.44 : 330,318.64 = 70,455.72 : x
  2. Step 2: Convert to fraction form
    220,215.44/330,318.64 = 70,455.72/x
  3. Step 3: Cross multiply
    220,215.44x = 330,318.64 × 70,455.72
  4. Step 4: Simplify right side
    220,215.44x = 23,272,838,937.39
  5. Step 5: Solve for x
    x = 23,272,838,937.39/220,215.44
  6. Step 6: Final answer
    x = 105,682.14

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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.