Home / 380,078.32-570,206.20-110,212.12

Finding the Fourth Proportional to 380,078.32, 570,206.20 and 110,212.12

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Solution

The fourth proportional to 380,078.32, 570,206.20 and 110,212.12 is: 165,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,078.32 : 570,206.20 = 110,212.12 : x
  2. Step 2: Convert to fraction form
    380,078.32/570,206.20 = 110,212.12/x
  3. Step 3: Cross multiply
    380,078.32x = 570,206.20 × 110,212.12
  4. Step 4: Simplify right side
    380,078.32x = 62,843,634,139.14
  5. Step 5: Solve for x
    x = 62,843,634,139.14/380,078.32
  6. Step 6: Final answer
    x = 165,343.91

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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.