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Finding the Fourth Proportional to 290,880.50, 436,212.74 and 101,292.20

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Solution

The fourth proportional to 290,880.50, 436,212.74 and 101,292.20 is: 151,900.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,880.50 : 436,212.74 = 101,292.20 : x
  2. Step 2: Convert to fraction form
    290,880.50/436,212.74 = 101,292.20/x
  3. Step 3: Cross multiply
    290,880.50x = 436,212.74 × 101,292.20
  4. Step 4: Simplify right side
    290,880.50x = 44,184,948,102.63
  5. Step 5: Solve for x
    x = 44,184,948,102.63/290,880.50
  6. Step 6: Final answer
    x = 151,900.69

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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.