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Finding the Fourth Proportional to 173,628.80, 260,394.60 and 55,336.40

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Solution

The fourth proportional to 173,628.80, 260,394.60 and 55,336.40 is: 82,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,628.80 : 260,394.60 = 55,336.40 : x
  2. Step 2: Convert to fraction form
    173,628.80/260,394.60 = 55,336.40/x
  3. Step 3: Cross multiply
    173,628.80x = 260,394.60 × 55,336.40
  4. Step 4: Simplify right side
    173,628.80x = 14,409,299,743.44
  5. Step 5: Solve for x
    x = 14,409,299,743.44/173,628.80
  6. Step 6: Final answer
    x = 82,989.11

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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.