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Finding the Fourth Proportional to 181,300.76, 250,202.83 and 100,728.29

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Solution

The fourth proportional to 181,300.76, 250,202.83 and 100,728.29 is: 139,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,300.76 : 250,202.83 = 100,728.29 : x
  2. Step 2: Convert to fraction form
    181,300.76/250,202.83 = 100,728.29/x
  3. Step 3: Cross multiply
    181,300.76x = 250,202.83 × 100,728.29
  4. Step 4: Simplify right side
    181,300.76x = 25,202,503,219.06
  5. Step 5: Solve for x
    x = 25,202,503,219.06/181,300.76
  6. Step 6: Final answer
    x = 139,009.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.