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Finding the Fourth Proportional to 283,027.70, 390,568.37 and 155,701.94

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Solution

The fourth proportional to 283,027.70, 390,568.37 and 155,701.94 is: 214,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,027.70 : 390,568.37 = 155,701.94 : x
  2. Step 2: Convert to fraction form
    283,027.70/390,568.37 = 155,701.94/x
  3. Step 3: Cross multiply
    283,027.70x = 390,568.37 × 155,701.94
  4. Step 4: Simplify right side
    283,027.70x = 60,812,252,911.64
  5. Step 5: Solve for x
    x = 60,812,252,911.64/283,027.70
  6. Step 6: Final answer
    x = 214,863.26

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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.