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Finding the Fourth Proportional to 184,424.80, 275,981.10 and 128,000.20

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Solution

The fourth proportional to 184,424.80, 275,981.10 and 128,000.20 is: 191,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,424.80 : 275,981.10 = 128,000.20 : x
  2. Step 2: Convert to fraction form
    184,424.80/275,981.10 = 128,000.20/x
  3. Step 3: Cross multiply
    184,424.80x = 275,981.10 × 128,000.20
  4. Step 4: Simplify right side
    184,424.80x = 35,325,635,996.22
  5. Step 5: Solve for x
    x = 35,325,635,996.22/184,424.80
  6. Step 6: Final answer
    x = 191,544.93

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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.