Home / 283,003.34-390,550.66-155,678.94

Finding the Fourth Proportional to 283,003.34, 390,550.66 and 155,678.94

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Solution

The fourth proportional to 283,003.34, 390,550.66 and 155,678.94 is: 214,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,003.34 : 390,550.66 = 155,678.94 : x
  2. Step 2: Convert to fraction form
    283,003.34/390,550.66 = 155,678.94/x
  3. Step 3: Cross multiply
    283,003.34x = 390,550.66 × 155,678.94
  4. Step 4: Simplify right side
    283,003.34x = 60,800,512,765.10
  5. Step 5: Solve for x
    x = 60,800,512,765.10/283,003.34
  6. Step 6: Final answer
    x = 214,840.27

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1.5x scale

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.