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Finding the Fourth Proportional to 228,224.76, 342,647.64 and 128,455.44

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Solution

The fourth proportional to 228,224.76, 342,647.64 and 128,455.44 is: 192,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,224.76 : 342,647.64 = 128,455.44 : x
  2. Step 2: Convert to fraction form
    228,224.76/342,647.64 = 128,455.44/x
  3. Step 3: Cross multiply
    228,224.76x = 342,647.64 × 128,455.44
  4. Step 4: Simplify right side
    228,224.76x = 44,014,953,361.16
  5. Step 5: Solve for x
    x = 44,014,953,361.16/228,224.76
  6. Step 6: Final answer
    x = 192,857.92

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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.