Home / 220,213.72-330,316.14-70,454.00

Finding the Fourth Proportional to 220,213.72, 330,316.14 and 70,454.00

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Solution

The fourth proportional to 220,213.72, 330,316.14 and 70,454.00 is: 105,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,213.72 : 330,316.14 = 70,454.00 : x
  2. Step 2: Convert to fraction form
    220,213.72/330,316.14 = 70,454.00/x
  3. Step 3: Cross multiply
    220,213.72x = 330,316.14 × 70,454.00
  4. Step 4: Simplify right side
    220,213.72x = 23,272,094,417.55
  5. Step 5: Solve for x
    x = 23,272,094,417.55/220,213.72
  6. Step 6: Final answer
    x = 105,679.58

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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.