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Finding the Fourth Proportional to 290,093.81, 435,427.09 and 217,795.26

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Solution

The fourth proportional to 290,093.81, 435,427.09 and 217,795.26 is: 326,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,093.81 : 435,427.09 = 217,795.26 : x
  2. Step 2: Convert to fraction form
    290,093.81/435,427.09 = 217,795.26/x
  3. Step 3: Cross multiply
    290,093.81x = 435,427.09 × 217,795.26
  4. Step 4: Simplify right side
    290,093.81x = 94,833,954,227.76
  5. Step 5: Solve for x
    x = 94,833,954,227.76/290,093.81
  6. Step 6: Final answer
    x = 326,907.89

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1.5x scale

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.