Finding the Fourth Proportional to 397,844.18, 549,071.80 and 223,443.08
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Solution
The fourth proportional to 397,844.18, 549,071.80 and 223,443.08 is: 308,377.75
Step by Step Solution
- Step 1: Write the proportion equation
397,844.18 : 549,071.80 = 223,443.08 : x - Step 2: Convert to fraction form
397,844.18/549,071.80 = 223,443.08/x - Step 3: Cross multiply
397,844.18x = 549,071.80 × 223,443.08 - Step 4: Simplify right side
397,844.18x = 122,686,294,133.14 - Step 5: Solve for x
x = 122,686,294,133.14/397,844.18 - Step 6: Final answer
x = 308,377.75
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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.