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Finding the Fourth Proportional to 292,570.22, 438,890.49 and 102,991.22

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Solution

The fourth proportional to 292,570.22, 438,890.49 and 102,991.22 is: 154,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,570.22 : 438,890.49 = 102,991.22 : x
  2. Step 2: Convert to fraction form
    292,570.22/438,890.49 = 102,991.22/x
  3. Step 3: Cross multiply
    292,570.22x = 438,890.49 × 102,991.22
  4. Step 4: Simplify right side
    292,570.22x = 45,201,864,817.05
  5. Step 5: Solve for x
    x = 45,201,864,817.05/292,570.22
  6. Step 6: Final answer
    x = 154,499.20

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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.