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Finding the Fourth Proportional to 200,263.61, 276,370.79 and 109,619.63

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Solution

The fourth proportional to 200,263.61, 276,370.79 and 109,619.63 is: 151,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,263.61 : 276,370.79 = 109,619.63 : x
  2. Step 2: Convert to fraction form
    200,263.61/276,370.79 = 109,619.63/x
  3. Step 3: Cross multiply
    200,263.61x = 276,370.79 × 109,619.63
  4. Step 4: Simplify right side
    200,263.61x = 30,295,663,742.61
  5. Step 5: Solve for x
    x = 30,295,663,742.61/200,263.61
  6. Step 6: Final answer
    x = 151,278.93

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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.