Finding the Fourth Proportional to 330,271.36, 455,856.06 and 187,115.74
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Solution
The fourth proportional to 330,271.36, 455,856.06 and 187,115.74 is: 258,265.94
Step by Step Solution
- Step 1: Write the proportion equation
330,271.36 : 455,856.06 = 187,115.74 : x - Step 2: Convert to fraction form
330,271.36/455,856.06 = 187,115.74/x - Step 3: Cross multiply
330,271.36x = 455,856.06 × 187,115.74 - Step 4: Simplify right side
330,271.36x = 85,297,844,000.38 - Step 5: Solve for x
x = 85,297,844,000.38/330,271.36 - Step 6: Final answer
x = 258,265.94
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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.