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Finding the Fourth Proportional to 194,987.79, 292,287.92 and 135,698.90

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Solution

The fourth proportional to 194,987.79, 292,287.92 and 135,698.90 is: 203,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,987.79 : 292,287.92 = 135,698.90 : x
  2. Step 2: Convert to fraction form
    194,987.79/292,287.92 = 135,698.90/x
  3. Step 3: Cross multiply
    194,987.79x = 292,287.92 × 135,698.90
  4. Step 4: Simplify right side
    194,987.79x = 39,663,147,087.35
  5. Step 5: Solve for x
    x = 39,663,147,087.35/194,987.79
  6. Step 6: Final answer
    x = 203,413.49

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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.