Home / 220,218.48-330,349.59-70,421.13

Finding the Fourth Proportional to 220,218.48, 330,349.59 and 70,421.13

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Solution

The fourth proportional to 220,218.48, 330,349.59 and 70,421.13 is: 105,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,218.48 : 330,349.59 = 70,421.13 : x
  2. Step 2: Convert to fraction form
    220,218.48/330,349.59 = 70,421.13/x
  3. Step 3: Cross multiply
    220,218.48x = 330,349.59 × 70,421.13
  4. Step 4: Simplify right side
    220,218.48x = 23,263,591,422.84
  5. Step 5: Solve for x
    x = 23,263,591,422.84/220,218.48
  6. Step 6: Final answer
    x = 105,638.69

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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.