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Finding the Fourth Proportional to 248,305.20, 372,611.70 and 130,061.40

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Solution

The fourth proportional to 248,305.20, 372,611.70 and 130,061.40 is: 195,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,305.20 : 372,611.70 = 130,061.40 : x
  2. Step 2: Convert to fraction form
    248,305.20/372,611.70 = 130,061.40/x
  3. Step 3: Cross multiply
    248,305.20x = 372,611.70 × 130,061.40
  4. Step 4: Simplify right side
    248,305.20x = 48,462,399,358.38
  5. Step 5: Solve for x
    x = 48,462,399,358.38/248,305.20
  6. Step 6: Final answer
    x = 195,172.71

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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.