Home / 239,152.12-358,778.78-79,219

Finding the Fourth Proportional to 239,152.12, 358,778.78 and 79,219

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Solution

The fourth proportional to 239,152.12, 358,778.78 and 79,219 is: 118,845.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,152.12 : 358,778.78 = 79,219 : x
  2. Step 2: Convert to fraction form
    239,152.12/358,778.78 = 79,219/x
  3. Step 3: Cross multiply
    239,152.12x = 358,778.78 × 79,219
  4. Step 4: Simplify right side
    239,152.12x = 28,422,096,172.82
  5. Step 5: Solve for x
    x = 28,422,096,172.82/239,152.12
  6. Step 6: Final answer
    x = 118,845.26

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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.