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Finding the Fourth Proportional to 320,701.54, 480,974.55 and 133,610.98

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Solution

The fourth proportional to 320,701.54, 480,974.55 and 133,610.98 is: 200,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,701.54 : 480,974.55 = 133,610.98 : x
  2. Step 2: Convert to fraction form
    320,701.54/480,974.55 = 133,610.98/x
  3. Step 3: Cross multiply
    320,701.54x = 480,974.55 × 133,610.98
  4. Step 4: Simplify right side
    320,701.54x = 64,263,480,980.56
  5. Step 5: Solve for x
    x = 64,263,480,980.56/320,701.54
  6. Step 6: Final answer
    x = 200,384.07

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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.