Finding the Fourth Proportional to 398,407.01, 549,787.91 and 217,115.24
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Solution
The fourth proportional to 398,407.01, 549,787.91 and 217,115.24 is: 299,611.52
Step by Step Solution
- Step 1: Write the proportion equation
398,407.01 : 549,787.91 = 217,115.24 : x - Step 2: Convert to fraction form
398,407.01/549,787.91 = 217,115.24/x - Step 3: Cross multiply
398,407.01x = 549,787.91 × 217,115.24 - Step 4: Simplify right side
398,407.01x = 119,367,330,194.23 - Step 5: Solve for x
x = 119,367,330,194.23/398,407.01 - Step 6: Final answer
x = 299,611.52
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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.