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Finding the Fourth Proportional to 207,374.44, 311,436.38 and 190,703.72

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Solution

The fourth proportional to 207,374.44, 311,436.38 and 190,703.72 is: 286,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,374.44 : 311,436.38 = 190,703.72 : x
  2. Step 2: Convert to fraction form
    207,374.44/311,436.38 = 190,703.72/x
  3. Step 3: Cross multiply
    207,374.44x = 311,436.38 × 190,703.72
  4. Step 4: Simplify right side
    207,374.44x = 59,392,076,209.33
  5. Step 5: Solve for x
    x = 59,392,076,209.33/207,374.44
  6. Step 6: Final answer
    x = 286,400.18

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1.5x scale

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.