Home / 290,570.22-436,511.48-172,319.13

Finding the Fourth Proportional to 290,570.22, 436,511.48 and 172,319.13

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Solution

The fourth proportional to 290,570.22, 436,511.48 and 172,319.13 is: 258,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,570.22 : 436,511.48 = 172,319.13 : x
  2. Step 2: Convert to fraction form
    290,570.22/436,511.48 = 172,319.13/x
  3. Step 3: Cross multiply
    290,570.22x = 436,511.48 × 172,319.13
  4. Step 4: Simplify right side
    290,570.22x = 75,219,277,607.02
  5. Step 5: Solve for x
    x = 75,219,277,607.02/290,570.22
  6. Step 6: Final answer
    x = 258,867.81

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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.