Home / 200,315.81-276,436.05-109,672.49

Finding the Fourth Proportional to 200,315.81, 276,436.05 and 109,672.49

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Solution

The fourth proportional to 200,315.81, 276,436.05 and 109,672.49 is: 151,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,315.81 : 276,436.05 = 109,672.49 : x
  2. Step 2: Convert to fraction form
    200,315.81/276,436.05 = 109,672.49/x
  3. Step 3: Cross multiply
    200,315.81x = 276,436.05 × 109,672.49
  4. Step 4: Simplify right side
    200,315.81x = 30,317,429,929.26
  5. Step 5: Solve for x
    x = 30,317,429,929.26/200,315.81
  6. Step 6: Final answer
    x = 151,348.16

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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.