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Finding the Fourth Proportional to 149,597.20, 224,284.20 and 90,420.40

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Solution

The fourth proportional to 149,597.20, 224,284.20 and 90,420.40 is: 135,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,597.20 : 224,284.20 = 90,420.40 : x
  2. Step 2: Convert to fraction form
    149,597.20/224,284.20 = 90,420.40/x
  3. Step 3: Cross multiply
    149,597.20x = 224,284.20 × 90,420.40
  4. Step 4: Simplify right side
    149,597.20x = 20,279,867,077.68
  5. Step 5: Solve for x
    x = 20,279,867,077.68/149,597.20
  6. Step 6: Final answer
    x = 135,563.15

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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.