Home / 309,101.18-426,705.73-207,193.22

Finding the Fourth Proportional to 309,101.18, 426,705.73 and 207,193.22

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Solution

The fourth proportional to 309,101.18, 426,705.73 and 207,193.22 is: 286,024.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,101.18 : 426,705.73 = 207,193.22 : x
  2. Step 2: Convert to fraction form
    309,101.18/426,705.73 = 207,193.22/x
  3. Step 3: Cross multiply
    309,101.18x = 426,705.73 × 207,193.22
  4. Step 4: Simplify right side
    309,101.18x = 88,410,531,648.31
  5. Step 5: Solve for x
    x = 88,410,531,648.31/309,101.18
  6. Step 6: Final answer
    x = 286,024.57

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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.