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Finding the Fourth Proportional to 221,351.60, 330,300.99 and 197,495.15

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Solution

The fourth proportional to 221,351.60, 330,300.99 and 197,495.15 is: 294,702.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,351.60 : 330,300.99 = 197,495.15 : x
  2. Step 2: Convert to fraction form
    221,351.60/330,300.99 = 197,495.15/x
  3. Step 3: Cross multiply
    221,351.60x = 330,300.99 × 197,495.15
  4. Step 4: Simplify right side
    221,351.60x = 65,232,844,058.94
  5. Step 5: Solve for x
    x = 65,232,844,058.94/221,351.60
  6. Step 6: Final answer
    x = 294,702.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.