Home / 290,144.28-435,076.43-121,619.35

Finding the Fourth Proportional to 290,144.28, 435,076.43 and 121,619.35

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Solution

The fourth proportional to 290,144.28, 435,076.43 and 121,619.35 is: 182,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,144.28 : 435,076.43 = 121,619.35 : x
  2. Step 2: Convert to fraction form
    290,144.28/435,076.43 = 121,619.35/x
  3. Step 3: Cross multiply
    290,144.28x = 435,076.43 × 121,619.35
  4. Step 4: Simplify right side
    290,144.28x = 52,913,712,616.92
  5. Step 5: Solve for x
    x = 52,913,712,616.92/290,144.28
  6. Step 6: Final answer
    x = 182,370.35

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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.