Home / 290,146.90-400,300.06-189,603.22

Finding the Fourth Proportional to 290,146.90, 400,300.06 and 189,603.22

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Solution

The fourth proportional to 290,146.90, 400,300.06 and 189,603.22 is: 261,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,146.90 : 400,300.06 = 189,603.22 : x
  2. Step 2: Convert to fraction form
    290,146.90/400,300.06 = 189,603.22/x
  3. Step 3: Cross multiply
    290,146.90x = 400,300.06 × 189,603.22
  4. Step 4: Simplify right side
    290,146.90x = 75,898,180,342.19
  5. Step 5: Solve for x
    x = 75,898,180,342.19/290,146.90
  6. Step 6: Final answer
    x = 261,585.36

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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.