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Finding the Fourth Proportional to 369,495.45, 509,903.49 and 199,729.58

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Solution

The fourth proportional to 369,495.45, 509,903.49 and 199,729.58 is: 275,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,495.45 : 509,903.49 = 199,729.58 : x
  2. Step 2: Convert to fraction form
    369,495.45/509,903.49 = 199,729.58/x
  3. Step 3: Cross multiply
    369,495.45x = 509,903.49 × 199,729.58
  4. Step 4: Simplify right side
    369,495.45x = 101,842,807,348.72
  5. Step 5: Solve for x
    x = 101,842,807,348.72/369,495.45
  6. Step 6: Final answer
    x = 275,626.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.