Home / 220,323.12-330,676.20-120,574.32

Finding the Fourth Proportional to 220,323.12, 330,676.20 and 120,574.32

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Solution

The fourth proportional to 220,323.12, 330,676.20 and 120,574.32 is: 180,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,323.12 : 330,676.20 = 120,574.32 : x
  2. Step 2: Convert to fraction form
    220,323.12/330,676.20 = 120,574.32/x
  3. Step 3: Cross multiply
    220,323.12x = 330,676.20 × 120,574.32
  4. Step 4: Simplify right side
    220,323.12x = 39,871,057,955.18
  5. Step 5: Solve for x
    x = 39,871,057,955.18/220,323.12
  6. Step 6: Final answer
    x = 180,966.29

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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.