Home / 283,007.34-390,556.18-155,682.94

Finding the Fourth Proportional to 283,007.34, 390,556.18 and 155,682.94

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Solution

The fourth proportional to 283,007.34, 390,556.18 and 155,682.94 is: 214,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,007.34 : 390,556.18 = 155,682.94 : x
  2. Step 2: Convert to fraction form
    283,007.34/390,556.18 = 155,682.94/x
  3. Step 3: Cross multiply
    283,007.34x = 390,556.18 × 155,682.94
  4. Step 4: Simplify right side
    283,007.34x = 60,802,934,337.57
  5. Step 5: Solve for x
    x = 60,802,934,337.57/283,007.34
  6. Step 6: Final answer
    x = 214,845.79

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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.