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Finding the Fourth Proportional to 290,628, 435,942 and 93,636

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Solution

The fourth proportional to 290,628, 435,942 and 93,636 is: 140,454

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,628 : 435,942 = 93,636 : x
  2. Step 2: Convert to fraction form
    290,628/435,942 = 93,636/x
  3. Step 3: Cross multiply
    290,628x = 435,942 × 93,636
  4. Step 4: Simplify right side
    290,628x = 40,819,865,112
  5. Step 5: Solve for x
    x = 40,819,865,112/290,628
  6. Step 6: Final answer
    x = 140,454

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.