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Finding the Fourth Proportional to 354,192.54, 488,802.99 and 199,192.60

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Solution

The fourth proportional to 354,192.54, 488,802.99 and 199,192.60 is: 274,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,192.54 : 488,802.99 = 199,192.60 : x
  2. Step 2: Convert to fraction form
    354,192.54/488,802.99 = 199,192.60/x
  3. Step 3: Cross multiply
    354,192.54x = 488,802.99 × 199,192.60
  4. Step 4: Simplify right side
    354,192.54x = 97,365,938,465.87
  5. Step 5: Solve for x
    x = 97,365,938,465.87/354,192.54
  6. Step 6: Final answer
    x = 274,895.51

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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.