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Finding the Fourth Proportional to 355,538.40, 533,384.40 and 106,245.60

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Solution

The fourth proportional to 355,538.40, 533,384.40 and 106,245.60 is: 159,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,538.40 : 533,384.40 = 106,245.60 : x
  2. Step 2: Convert to fraction form
    355,538.40/533,384.40 = 106,245.60/x
  3. Step 3: Cross multiply
    355,538.40x = 533,384.40 × 106,245.60
  4. Step 4: Simplify right side
    355,538.40x = 56,669,745,608.64
  5. Step 5: Solve for x
    x = 56,669,745,608.64/355,538.40
  6. Step 6: Final answer
    x = 159,391.35

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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.