Home / 220,685.07-330,609.79-130,457.66

Finding the Fourth Proportional to 220,685.07, 330,609.79 and 130,457.66

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Solution

The fourth proportional to 220,685.07, 330,609.79 and 130,457.66 is: 195,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,685.07 : 330,609.79 = 130,457.66 : x
  2. Step 2: Convert to fraction form
    220,685.07/330,609.79 = 130,457.66/x
  3. Step 3: Cross multiply
    220,685.07x = 330,609.79 × 130,457.66
  4. Step 4: Simplify right side
    220,685.07x = 43,130,578,086.51
  5. Step 5: Solve for x
    x = 43,130,578,086.51/220,685.07
  6. Step 6: Final answer
    x = 195,439.49

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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.