Home / 200,219.48-276,303.66-128,600.12

Finding the Fourth Proportional to 200,219.48, 276,303.66 and 128,600.12

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Solution

The fourth proportional to 200,219.48, 276,303.66 and 128,600.12 is: 177,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,219.48 : 276,303.66 = 128,600.12 : x
  2. Step 2: Convert to fraction form
    200,219.48/276,303.66 = 128,600.12/x
  3. Step 3: Cross multiply
    200,219.48x = 276,303.66 × 128,600.12
  4. Step 4: Simplify right side
    200,219.48x = 35,532,683,832.44
  5. Step 5: Solve for x
    x = 35,532,683,832.44/200,219.48
  6. Step 6: Final answer
    x = 177,468.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.