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Finding the Fourth Proportional to 290,099.04, 435,050.01 and 100,515.16

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Solution

The fourth proportional to 290,099.04, 435,050.01 and 100,515.16 is: 150,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,099.04 : 435,050.01 = 100,515.16 : x
  2. Step 2: Convert to fraction form
    290,099.04/435,050.01 = 100,515.16/x
  3. Step 3: Cross multiply
    290,099.04x = 435,050.01 × 100,515.16
  4. Step 4: Simplify right side
    290,099.04x = 43,729,121,363.15
  5. Step 5: Solve for x
    x = 43,729,121,363.15/290,099.04
  6. Step 6: Final answer
    x = 150,738.59

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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.