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Finding the Fourth Proportional to 215,683.60, 323,525.40 and 185,616.40

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Solution

The fourth proportional to 215,683.60, 323,525.40 and 185,616.40 is: 278,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683.60 : 323,525.40 = 185,616.40 : x
  2. Step 2: Convert to fraction form
    215,683.60/323,525.40 = 185,616.40/x
  3. Step 3: Cross multiply
    215,683.60x = 323,525.40 × 185,616.40
  4. Step 4: Simplify right side
    215,683.60x = 60,051,620,056.56
  5. Step 5: Solve for x
    x = 60,051,620,056.56/215,683.60
  6. Step 6: Final answer
    x = 278,424.60

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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.