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Finding the Fourth Proportional to 248,000.40, 372,146.40 and 90,244.80

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Solution

The fourth proportional to 248,000.40, 372,146.40 and 90,244.80 is: 135,420.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,000.40 : 372,146.40 = 90,244.80 : x
  2. Step 2: Convert to fraction form
    248,000.40/372,146.40 = 90,244.80/x
  3. Step 3: Cross multiply
    248,000.40x = 372,146.40 × 90,244.80
  4. Step 4: Simplify right side
    248,000.40x = 33,584,277,438.72
  5. Step 5: Solve for x
    x = 33,584,277,438.72/248,000.40
  6. Step 6: Final answer
    x = 135,420.26

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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.