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Finding the Fourth Proportional to 490,146.84, 735,217.56 and 190,835.64

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Solution

The fourth proportional to 490,146.84, 735,217.56 and 190,835.64 is: 286,252.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,146.84 : 735,217.56 = 190,835.64 : x
  2. Step 2: Convert to fraction form
    490,146.84/735,217.56 = 190,835.64/x
  3. Step 3: Cross multiply
    490,146.84x = 735,217.56 × 190,835.64
  4. Step 4: Simplify right side
    490,146.84x = 140,305,713,601.84
  5. Step 5: Solve for x
    x = 140,305,713,601.84/490,146.84
  6. Step 6: Final answer
    x = 286,252.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.