Finding the Fourth Proportional to 398,400.19, 549,792.26 and 219,552.19
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Solution
The fourth proportional to 398,400.19, 549,792.26 and 219,552.19 is: 302,982.02
Step by Step Solution
- Step 1: Write the proportion equation
398,400.19 : 549,792.26 = 219,552.19 : x - Step 2: Convert to fraction form
398,400.19/549,792.26 = 219,552.19/x - Step 3: Cross multiply
398,400.19x = 549,792.26 × 219,552.19 - Step 4: Simplify right side
398,400.19x = 120,708,093,079.13 - Step 5: Solve for x
x = 120,708,093,079.13/398,400.19 - Step 6: Final answer
x = 302,982.02
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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.