Finding the Fourth Proportional to 415,803.98, 623,782.90 and 131,566.08
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Solution
The fourth proportional to 415,803.98, 623,782.90 and 131,566.08 is: 197,373.46
Step by Step Solution
- Step 1: Write the proportion equation
415,803.98 : 623,782.90 = 131,566.08 : x - Step 2: Convert to fraction form
415,803.98/623,782.90 = 131,566.08/x - Step 3: Cross multiply
415,803.98x = 623,782.90 × 131,566.08 - Step 4: Simplify right side
415,803.98x = 82,068,670,924.03 - Step 5: Solve for x
x = 82,068,670,924.03/415,803.98 - Step 6: Final answer
x = 197,373.46
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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.