Home / 283,003.74-390,537.32-155,679.57

Finding the Fourth Proportional to 283,003.74, 390,537.32 and 155,679.57

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Solution

The fourth proportional to 283,003.74, 390,537.32 and 155,679.57 is: 214,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,003.74 : 390,537.32 = 155,679.57 : x
  2. Step 2: Convert to fraction form
    283,003.74/390,537.32 = 155,679.57/x
  3. Step 3: Cross multiply
    283,003.74x = 390,537.32 × 155,679.57
  4. Step 4: Simplify right side
    283,003.74x = 60,798,681,268.15
  5. Step 5: Solve for x
    x = 60,798,681,268.15/283,003.74
  6. Step 6: Final answer
    x = 214,833.49

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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.