Finding the Fourth Proportional to 398,483.01, 549,902.99 and 217,194.95
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Solution
The fourth proportional to 398,483.01, 549,902.99 and 217,194.95 is: 299,727.09
Step by Step Solution
- Step 1: Write the proportion equation
398,483.01 : 549,902.99 = 217,194.95 : x - Step 2: Convert to fraction form
398,483.01/549,902.99 = 217,194.95/x - Step 3: Cross multiply
398,483.01x = 549,902.99 × 217,194.95 - Step 4: Simplify right side
398,483.01x = 119,436,154,335.65 - Step 5: Solve for x
x = 119,436,154,335.65/398,483.01 - Step 6: Final answer
x = 299,727.09
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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.