Home / 220,345.44-330,519.12-87,220.32

Finding the Fourth Proportional to 220,345.44, 330,519.12 and 87,220.32

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Solution

The fourth proportional to 220,345.44, 330,519.12 and 87,220.32 is: 130,830.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,345.44 : 330,519.12 = 87,220.32 : x
  2. Step 2: Convert to fraction form
    220,345.44/330,519.12 = 87,220.32/x
  3. Step 3: Cross multiply
    220,345.44x = 330,519.12 × 87,220.32
  4. Step 4: Simplify right side
    220,345.44x = 28,827,983,412.52
  5. Step 5: Solve for x
    x = 28,827,983,412.52/220,345.44
  6. Step 6: Final answer
    x = 130,830.86

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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.