Finding the Fourth Proportional to 351,319.72, 526,980.78 and 85,079.80
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Solution
The fourth proportional to 351,319.72, 526,980.78 and 85,079.80 is: 127,619.99
Step by Step Solution
- Step 1: Write the proportion equation
351,319.72 : 526,980.78 = 85,079.80 : x - Step 2: Convert to fraction form
351,319.72/526,980.78 = 85,079.80/x - Step 3: Cross multiply
351,319.72x = 526,980.78 × 85,079.80 - Step 4: Simplify right side
351,319.72x = 44,835,419,366.24 - Step 5: Solve for x
x = 44,835,419,366.24/351,319.72 - Step 6: Final answer
x = 127,619.99
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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.