Home / 648,300.22-972,415.18-199,021.18

Finding the Fourth Proportional to 648,300.22, 972,415.18 and 199,021.18

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Solution

The fourth proportional to 648,300.22, 972,415.18 and 199,021.18 is: 298,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,300.22 : 972,415.18 = 199,021.18 : x
  2. Step 2: Convert to fraction form
    648,300.22/972,415.18 = 199,021.18/x
  3. Step 3: Cross multiply
    648,300.22x = 972,415.18 × 199,021.18
  4. Step 4: Simplify right side
    648,300.22x = 193,531,216,573.51
  5. Step 5: Solve for x
    x = 193,531,216,573.51/648,300.22
  6. Step 6: Final answer
    x = 298,520.98

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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.