Home / 283,403.40-425,004.78-83,670.36

Finding the Fourth Proportional to 283,403.40, 425,004.78 and 83,670.36

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Solution

The fourth proportional to 283,403.40, 425,004.78 and 83,670.36 is: 125,475.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,403.40 : 425,004.78 = 83,670.36 : x
  2. Step 2: Convert to fraction form
    283,403.40/425,004.78 = 83,670.36/x
  3. Step 3: Cross multiply
    283,403.40x = 425,004.78 × 83,670.36
  4. Step 4: Simplify right side
    283,403.40x = 35,560,302,944.32
  5. Step 5: Solve for x
    x = 35,560,302,944.32/283,403.40
  6. Step 6: Final answer
    x = 125,475.92

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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.