Home / 320,722.18-442,603.83-207,741.58

Finding the Fourth Proportional to 320,722.18, 442,603.83 and 207,741.58

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Solution

The fourth proportional to 320,722.18, 442,603.83 and 207,741.58 is: 286,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,722.18 : 442,603.83 = 207,741.58 : x
  2. Step 2: Convert to fraction form
    320,722.18/442,603.83 = 207,741.58/x
  3. Step 3: Cross multiply
    320,722.18x = 442,603.83 × 207,741.58
  4. Step 4: Simplify right side
    320,722.18x = 91,947,218,958.25
  5. Step 5: Solve for x
    x = 91,947,218,958.25/320,722.18
  6. Step 6: Final answer
    x = 286,688.06

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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.