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Finding the Fourth Proportional to 283,053.94, 390,622.64 and 155,737.73

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Solution

The fourth proportional to 283,053.94, 390,622.64 and 155,737.73 is: 214,922.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,053.94 : 390,622.64 = 155,737.73 : x
  2. Step 2: Convert to fraction form
    283,053.94/390,622.64 = 155,737.73/x
  3. Step 3: Cross multiply
    283,053.94x = 390,622.64 × 155,737.73
  4. Step 4: Simplify right side
    283,053.94x = 60,834,683,438.08
  5. Step 5: Solve for x
    x = 60,834,683,438.08/283,053.94
  6. Step 6: Final answer
    x = 214,922.58

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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.