Home / 290,886.29-401,225.74-188,729.24

Finding the Fourth Proportional to 290,886.29, 401,225.74 and 188,729.24

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Solution

The fourth proportional to 290,886.29, 401,225.74 and 188,729.24 is: 260,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,886.29 : 401,225.74 = 188,729.24 : x
  2. Step 2: Convert to fraction form
    290,886.29/401,225.74 = 188,729.24/x
  3. Step 3: Cross multiply
    290,886.29x = 401,225.74 × 188,729.24
  4. Step 4: Simplify right side
    290,886.29x = 75,723,026,028.86
  5. Step 5: Solve for x
    x = 75,723,026,028.86/290,886.29
  6. Step 6: Final answer
    x = 260,318.31

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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.