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Finding the Fourth Proportional to 369,205.33, 509,503.81 and 199,439.45

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Solution

The fourth proportional to 369,205.33, 509,503.81 and 199,439.45 is: 275,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,205.33 : 509,503.81 = 199,439.45 : x
  2. Step 2: Convert to fraction form
    369,205.33/509,503.81 = 199,439.45/x
  3. Step 3: Cross multiply
    369,205.33x = 509,503.81 × 199,439.45
  4. Step 4: Simplify right side
    369,205.33x = 101,615,159,639.31
  5. Step 5: Solve for x
    x = 101,615,159,639.31/369,205.33
  6. Step 6: Final answer
    x = 275,226.69

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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.