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Finding the Fourth Proportional to 383,702.60, 576,072.30 and 243,734.60

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Solution

The fourth proportional to 383,702.60, 576,072.30 and 243,734.60 is: 365,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,702.60 : 576,072.30 = 243,734.60 : x
  2. Step 2: Convert to fraction form
    383,702.60/576,072.30 = 243,734.60/x
  3. Step 3: Cross multiply
    383,702.60x = 576,072.30 × 243,734.60
  4. Step 4: Simplify right side
    383,702.60x = 140,408,751,611.58
  5. Step 5: Solve for x
    x = 140,408,751,611.58/383,702.60
  6. Step 6: Final answer
    x = 365,931.20

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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.