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Finding the Fourth Proportional to 207,418.37, 286,118.08 and 130,910.28

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Solution

The fourth proportional to 207,418.37, 286,118.08 and 130,910.28 is: 180,580.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,418.37 : 286,118.08 = 130,910.28 : x
  2. Step 2: Convert to fraction form
    207,418.37/286,118.08 = 130,910.28/x
  3. Step 3: Cross multiply
    207,418.37x = 286,118.08 × 130,910.28
  4. Step 4: Simplify right side
    207,418.37x = 37,455,797,965.86
  5. Step 5: Solve for x
    x = 37,455,797,965.86/207,418.37
  6. Step 6: Final answer
    x = 180,580.91

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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.