Home / 394,317.05-544,157.80-213,028.91

Finding the Fourth Proportional to 394,317.05, 544,157.80 and 213,028.91

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Solution

The fourth proportional to 394,317.05, 544,157.80 and 213,028.91 is: 293,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,317.05 : 544,157.80 = 213,028.91 : x
  2. Step 2: Convert to fraction form
    394,317.05/544,157.80 = 213,028.91/x
  3. Step 3: Cross multiply
    394,317.05x = 544,157.80 × 213,028.91
  4. Step 4: Simplify right side
    394,317.05x = 115,921,343,319.67
  5. Step 5: Solve for x
    x = 115,921,343,319.67/394,317.05
  6. Step 6: Final answer
    x = 293,980.04

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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.