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Finding the Fourth Proportional to 215,083.77, 296,889.44 and 130,200.86

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Solution

The fourth proportional to 215,083.77, 296,889.44 and 130,200.86 is: 179,721.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,083.77 : 296,889.44 = 130,200.86 : x
  2. Step 2: Convert to fraction form
    215,083.77/296,889.44 = 130,200.86/x
  3. Step 3: Cross multiply
    215,083.77x = 296,889.44 × 130,200.86
  4. Step 4: Simplify right side
    215,083.77x = 38,655,258,277.47
  5. Step 5: Solve for x
    x = 38,655,258,277.47/215,083.77
  6. Step 6: Final answer
    x = 179,721.87

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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.