Home / 306,840.48-423,221.73-204,814.50

Finding the Fourth Proportional to 306,840.48, 423,221.73 and 204,814.50

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Solution

The fourth proportional to 306,840.48, 423,221.73 and 204,814.50 is: 282,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,840.48 : 423,221.73 = 204,814.50 : x
  2. Step 2: Convert to fraction form
    306,840.48/423,221.73 = 204,814.50/x
  3. Step 3: Cross multiply
    306,840.48x = 423,221.73 × 204,814.50
  4. Step 4: Simplify right side
    306,840.48x = 86,681,947,019.09
  5. Step 5: Solve for x
    x = 86,681,947,019.09/306,840.48
  6. Step 6: Final answer
    x = 282,498.41

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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.