Finding the Fourth Proportional to 398,371.08, 549,745.08 and 217,084.32
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Solution
The fourth proportional to 398,371.08, 549,745.08 and 217,084.32 is: 299,572.54
Step by Step Solution
- Step 1: Write the proportion equation
398,371.08 : 549,745.08 = 217,084.32 : x - Step 2: Convert to fraction form
398,371.08/549,745.08 = 217,084.32/x - Step 3: Cross multiply
398,371.08x = 549,745.08 × 217,084.32 - Step 4: Simplify right side
398,371.08x = 119,341,036,865.15 - Step 5: Solve for x
x = 119,341,036,865.15/398,371.08 - Step 6: Final answer
x = 299,572.54
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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.