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Finding the Fourth Proportional to 220,973.60, 331,460.40 and 190,906.40

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Solution

The fourth proportional to 220,973.60, 331,460.40 and 190,906.40 is: 286,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,973.60 : 331,460.40 = 190,906.40 : x
  2. Step 2: Convert to fraction form
    220,973.60/331,460.40 = 190,906.40/x
  3. Step 3: Cross multiply
    220,973.60x = 331,460.40 × 190,906.40
  4. Step 4: Simplify right side
    220,973.60x = 63,277,911,706.56
  5. Step 5: Solve for x
    x = 63,277,911,706.56/220,973.60
  6. Step 6: Final answer
    x = 286,359.60

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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.