Finding the Fourth Proportional to 398,454.81, 549,880.48 and 226,369.63
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Solution
The fourth proportional to 398,454.81, 549,880.48 and 226,369.63 is: 312,397.39
Step by Step Solution
- Step 1: Write the proportion equation
398,454.81 : 549,880.48 = 226,369.63 : x - Step 2: Convert to fraction form
398,454.81/549,880.48 = 226,369.63/x - Step 3: Cross multiply
398,454.81x = 549,880.48 × 226,369.63 - Step 4: Simplify right side
398,454.81x = 124,476,239,669.97 - Step 5: Solve for x
x = 124,476,239,669.97/398,454.81 - Step 6: Final answer
x = 312,397.39
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1.5x scale
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.