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Finding the Fourth Proportional to 283,162.26, 390,771.78 and 154,101.93

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Solution

The fourth proportional to 283,162.26, 390,771.78 and 154,101.93 is: 212,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,162.26 : 390,771.78 = 154,101.93 : x
  2. Step 2: Convert to fraction form
    283,162.26/390,771.78 = 154,101.93/x
  3. Step 3: Cross multiply
    283,162.26x = 390,771.78 × 154,101.93
  4. Step 4: Simplify right side
    283,162.26x = 60,218,683,444.26
  5. Step 5: Solve for x
    x = 60,218,683,444.26/283,162.26
  6. Step 6: Final answer
    x = 212,664.93

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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.