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Finding the Fourth Proportional to 290,995.20, 436,820.85 and 224,729.10

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Solution

The fourth proportional to 290,995.20, 436,820.85 and 224,729.10 is: 337,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,995.20 : 436,820.85 = 224,729.10 : x
  2. Step 2: Convert to fraction form
    290,995.20/436,820.85 = 224,729.10/x
  3. Step 3: Cross multiply
    290,995.20x = 436,820.85 × 224,729.10
  4. Step 4: Simplify right side
    290,995.20x = 98,166,356,481.74
  5. Step 5: Solve for x
    x = 98,166,356,481.74/290,995.20
  6. Step 6: Final answer
    x = 337,347.00

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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.