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Finding the Fourth Proportional to 283,619.07, 425,427.39 and 83,940.30

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Solution

The fourth proportional to 283,619.07, 425,427.39 and 83,940.30 is: 125,910.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,619.07 : 425,427.39 = 83,940.30 : x
  2. Step 2: Convert to fraction form
    283,619.07/425,427.39 = 83,940.30/x
  3. Step 3: Cross multiply
    283,619.07x = 425,427.39 × 83,940.30
  4. Step 4: Simplify right side
    283,619.07x = 35,710,502,744.82
  5. Step 5: Solve for x
    x = 35,710,502,744.82/283,619.07
  6. Step 6: Final answer
    x = 125,910.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.