Home / 300,830.03-451,146.62-140,856.45

Finding the Fourth Proportional to 300,830.03, 451,146.62 and 140,856.45

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Solution

The fourth proportional to 300,830.03, 451,146.62 and 140,856.45 is: 211,238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,830.03 : 451,146.62 = 140,856.45 : x
  2. Step 2: Convert to fraction form
    300,830.03/451,146.62 = 140,856.45/x
  3. Step 3: Cross multiply
    300,830.03x = 451,146.62 × 140,856.45
  4. Step 4: Simplify right side
    300,830.03x = 63,546,911,322.70
  5. Step 5: Solve for x
    x = 63,546,911,322.70/300,830.03
  6. Step 6: Final answer
    x = 211,238.59

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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.