Home / 369,245.18-509,558.82-199,479.32

Finding the Fourth Proportional to 369,245.18, 509,558.82 and 199,479.32

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Solution

The fourth proportional to 369,245.18, 509,558.82 and 199,479.32 is: 275,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,245.18 : 509,558.82 = 199,479.32 : x
  2. Step 2: Convert to fraction form
    369,245.18/509,558.82 = 199,479.32/x
  3. Step 3: Cross multiply
    369,245.18x = 509,558.82 × 199,479.32
  4. Step 4: Simplify right side
    369,245.18x = 101,646,446,913.60
  5. Step 5: Solve for x
    x = 101,646,446,913.60/369,245.18
  6. Step 6: Final answer
    x = 275,281.72

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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.