Finding the Fourth Proportional to 398,222.36, 549,542.58 and 228,483.08
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Solution
The fourth proportional to 398,222.36, 549,542.58 and 228,483.08 is: 315,304.20
Step by Step Solution
- Step 1: Write the proportion equation
398,222.36 : 549,542.58 = 228,483.08 : x - Step 2: Convert to fraction form
398,222.36/549,542.58 = 228,483.08/x - Step 3: Cross multiply
398,222.36x = 549,542.58 × 228,483.08 - Step 4: Simplify right side
398,222.36x = 125,561,181,269.55 - Step 5: Solve for x
x = 125,561,181,269.55/398,222.36 - Step 6: Final answer
x = 315,304.20
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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.