Home / 415,928.20-623,892.30-149,697.40

Finding the Fourth Proportional to 415,928.20, 623,892.30 and 149,697.40

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Solution

The fourth proportional to 415,928.20, 623,892.30 and 149,697.40 is: 224,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,928.20 : 623,892.30 = 149,697.40 : x
  2. Step 2: Convert to fraction form
    415,928.20/623,892.30 = 149,697.40/x
  3. Step 3: Cross multiply
    415,928.20x = 623,892.30 × 149,697.40
  4. Step 4: Simplify right side
    415,928.20x = 93,395,055,190.02
  5. Step 5: Solve for x
    x = 93,395,055,190.02/415,928.20
  6. Step 6: Final answer
    x = 224,546.10

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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.