Home / 283,285.34-390,918.93-155,936.06

Finding the Fourth Proportional to 283,285.34, 390,918.93 and 155,936.06

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Solution

The fourth proportional to 283,285.34, 390,918.93 and 155,936.06 is: 215,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,285.34 : 390,918.93 = 155,936.06 : x
  2. Step 2: Convert to fraction form
    283,285.34/390,918.93 = 155,936.06/x
  3. Step 3: Cross multiply
    283,285.34x = 390,918.93 × 155,936.06
  4. Step 4: Simplify right side
    283,285.34x = 60,958,357,723.62
  5. Step 5: Solve for x
    x = 60,958,357,723.62/283,285.34
  6. Step 6: Final answer
    x = 215,183.59

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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.