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Finding the Fourth Proportional to 374,000.68, 515,511.30 and 260,626.60

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Solution

The fourth proportional to 374,000.68, 515,511.30 and 260,626.60 is: 359,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,000.68 : 515,511.30 = 260,626.60 : x
  2. Step 2: Convert to fraction form
    374,000.68/515,511.30 = 260,626.60/x
  3. Step 3: Cross multiply
    374,000.68x = 515,511.30 × 260,626.60
  4. Step 4: Simplify right side
    374,000.68x = 134,355,957,380.58
  5. Step 5: Solve for x
    x = 134,355,957,380.58/374,000.68
  6. Step 6: Final answer
    x = 359,239.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.