Home / 290,736.14-435,707.81-140,676.95

Finding the Fourth Proportional to 290,736.14, 435,707.81 and 140,676.95

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Solution

The fourth proportional to 290,736.14, 435,707.81 and 140,676.95 is: 210,823.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,736.14 : 435,707.81 = 140,676.95 : x
  2. Step 2: Convert to fraction form
    290,736.14/435,707.81 = 140,676.95/x
  3. Step 3: Cross multiply
    290,736.14x = 435,707.81 × 140,676.95
  4. Step 4: Simplify right side
    290,736.14x = 61,294,046,715.40
  5. Step 5: Solve for x
    x = 61,294,046,715.40/290,736.14
  6. Step 6: Final answer
    x = 210,823.63

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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.