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Finding the Fourth Proportional to 290,968.19, 436,343.37 and 101,379.89

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Solution

The fourth proportional to 290,968.19, 436,343.37 and 101,379.89 is: 152,031.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,968.19 : 436,343.37 = 101,379.89 : x
  2. Step 2: Convert to fraction form
    290,968.19/436,343.37 = 101,379.89/x
  3. Step 3: Cross multiply
    290,968.19x = 436,343.37 × 101,379.89
  4. Step 4: Simplify right side
    290,968.19x = 44,236,440,671.11
  5. Step 5: Solve for x
    x = 44,236,440,671.11/290,968.19
  6. Step 6: Final answer
    x = 152,031.88

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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.