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Finding the Fourth Proportional to 281,298.60, 421,902.42 and 103,889.16

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Solution

The fourth proportional to 281,298.60, 421,902.42 and 103,889.16 is: 155,816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,298.60 : 421,902.42 = 103,889.16 : x
  2. Step 2: Convert to fraction form
    281,298.60/421,902.42 = 103,889.16/x
  3. Step 3: Cross multiply
    281,298.60x = 421,902.42 × 103,889.16
  4. Step 4: Simplify right side
    281,298.60x = 43,831,088,015.77
  5. Step 5: Solve for x
    x = 43,831,088,015.77/281,298.60
  6. Step 6: Final answer
    x = 155,816.94

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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.