Home / 210,529.40-290,530.64-113,733.28

Finding the Fourth Proportional to 210,529.40, 290,530.64 and 113,733.28

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Solution

The fourth proportional to 210,529.40, 290,530.64 and 113,733.28 is: 156,951.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,529.40 : 290,530.64 = 113,733.28 : x
  2. Step 2: Convert to fraction form
    210,529.40/290,530.64 = 113,733.28/x
  3. Step 3: Cross multiply
    210,529.40x = 290,530.64 × 113,733.28
  4. Step 4: Simplify right side
    210,529.40x = 33,043,002,627.70
  5. Step 5: Solve for x
    x = 33,043,002,627.70/210,529.40
  6. Step 6: Final answer
    x = 156,951.96

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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.