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Finding the Fourth Proportional to 138,989.93, 208,483.07 and 33,809.00

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Solution

The fourth proportional to 138,989.93, 208,483.07 and 33,809.00 is: 50,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,989.93 : 208,483.07 = 33,809.00 : x
  2. Step 2: Convert to fraction form
    138,989.93/208,483.07 = 33,809.00/x
  3. Step 3: Cross multiply
    138,989.93x = 208,483.07 × 33,809.00
  4. Step 4: Simplify right side
    138,989.93x = 7,048,602,902.17
  5. Step 5: Solve for x
    x = 7,048,602,902.17/138,989.93
  6. Step 6: Final answer
    x = 50,713.05

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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.