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Finding the Fourth Proportional to 354,937.36, 489,799.56 and 193,799.20

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Solution

The fourth proportional to 354,937.36, 489,799.56 and 193,799.20 is: 267,435.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,937.36 : 489,799.56 = 193,799.20 : x
  2. Step 2: Convert to fraction form
    354,937.36/489,799.56 = 193,799.20/x
  3. Step 3: Cross multiply
    354,937.36x = 489,799.56 × 193,799.20
  4. Step 4: Simplify right side
    354,937.36x = 94,922,762,888.35
  5. Step 5: Solve for x
    x = 94,922,762,888.35/354,937.36
  6. Step 6: Final answer
    x = 267,435.25

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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.