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Finding the Fourth Proportional to 203,477.60, 305,216.40 and 92,885.60

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Solution

The fourth proportional to 203,477.60, 305,216.40 and 92,885.60 is: 139,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,477.60 : 305,216.40 = 92,885.60 : x
  2. Step 2: Convert to fraction form
    203,477.60/305,216.40 = 92,885.60/x
  3. Step 3: Cross multiply
    203,477.60x = 305,216.40 × 92,885.60
  4. Step 4: Simplify right side
    203,477.60x = 28,350,208,443.84
  5. Step 5: Solve for x
    x = 28,350,208,443.84/203,477.60
  6. Step 6: Final answer
    x = 139,328.40

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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.