Home / 200,218.48-276,302.28-128,599.12

Finding the Fourth Proportional to 200,218.48, 276,302.28 and 128,599.12

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Solution

The fourth proportional to 200,218.48, 276,302.28 and 128,599.12 is: 177,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,218.48 : 276,302.28 = 128,599.12 : x
  2. Step 2: Convert to fraction form
    200,218.48/276,302.28 = 128,599.12/x
  3. Step 3: Cross multiply
    200,218.48x = 276,302.28 × 128,599.12
  4. Step 4: Simplify right side
    200,218.48x = 35,532,230,061.99
  5. Step 5: Solve for x
    x = 35,532,230,061.99/200,218.48
  6. Step 6: Final answer
    x = 177,467.29

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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.