Home / 320,720.96-442,960.44-218,570.24

Finding the Fourth Proportional to 320,720.96, 442,960.44 and 218,570.24

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Solution

The fourth proportional to 320,720.96, 442,960.44 and 218,570.24 is: 301,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,720.96 : 442,960.44 = 218,570.24 : x
  2. Step 2: Convert to fraction form
    320,720.96/442,960.44 = 218,570.24/x
  3. Step 3: Cross multiply
    320,720.96x = 442,960.44 × 218,570.24
  4. Step 4: Simplify right side
    320,720.96x = 96,817,969,681.31
  5. Step 5: Solve for x
    x = 96,817,969,681.31/320,720.96
  6. Step 6: Final answer
    x = 301,876.03

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1.5x scale

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.