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Finding the Fourth Proportional to 283,150.62, 390,750.62 and 155,829.15

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Solution

The fourth proportional to 283,150.62, 390,750.62 and 155,829.15 is: 215,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,150.62 : 390,750.62 = 155,829.15 : x
  2. Step 2: Convert to fraction form
    283,150.62/390,750.62 = 155,829.15/x
  3. Step 3: Cross multiply
    283,150.62x = 390,750.62 × 155,829.15
  4. Step 4: Simplify right side
    283,150.62x = 60,890,336,197.43
  5. Step 5: Solve for x
    x = 60,890,336,197.43/283,150.62
  6. Step 6: Final answer
    x = 215,045.75

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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.