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Finding the Fourth Proportional to 379,841.20, 569,761.80 and 246,871.60

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Solution

The fourth proportional to 379,841.20, 569,761.80 and 246,871.60 is: 370,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,841.20 : 569,761.80 = 246,871.60 : x
  2. Step 2: Convert to fraction form
    379,841.20/569,761.80 = 246,871.60/x
  3. Step 3: Cross multiply
    379,841.20x = 569,761.80 × 246,871.60
  4. Step 4: Simplify right side
    379,841.20x = 140,658,007,184.88
  5. Step 5: Solve for x
    x = 140,658,007,184.88/379,841.20
  6. Step 6: Final answer
    x = 370,307.40

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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.