Home / 283,003.36-390,550.68-155,678.96

Finding the Fourth Proportional to 283,003.36, 390,550.68 and 155,678.96

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Solution

The fourth proportional to 283,003.36, 390,550.68 and 155,678.96 is: 214,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,003.36 : 390,550.68 = 155,678.96 : x
  2. Step 2: Convert to fraction form
    283,003.36/390,550.68 = 155,678.96/x
  3. Step 3: Cross multiply
    283,003.36x = 390,550.68 × 155,678.96
  4. Step 4: Simplify right side
    283,003.36x = 60,800,523,689.69
  5. Step 5: Solve for x
    x = 60,800,523,689.69/283,003.36
  6. Step 6: Final answer
    x = 214,840.29

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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.