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Finding the Fourth Proportional to 225,087.84, 310,682.64 and 140,154.72

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Solution

The fourth proportional to 225,087.84, 310,682.64 and 140,154.72 is: 193,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,087.84 : 310,682.64 = 140,154.72 : x
  2. Step 2: Convert to fraction form
    225,087.84/310,682.64 = 140,154.72/x
  3. Step 3: Cross multiply
    225,087.84x = 310,682.64 × 140,154.72
  4. Step 4: Simplify right side
    225,087.84x = 43,543,638,418.06
  5. Step 5: Solve for x
    x = 43,543,638,418.06/225,087.84
  6. Step 6: Final answer
    x = 193,451.76

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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.