Finding the Fourth Proportional to 438,252.84, 657,454.68 and 138,728.88
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Solution
The fourth proportional to 438,252.84, 657,454.68 and 138,728.88 is: 208,117.19
Step by Step Solution
- Step 1: Write the proportion equation
438,252.84 : 657,454.68 = 138,728.88 : x - Step 2: Convert to fraction form
438,252.84/657,454.68 = 138,728.88/x - Step 3: Cross multiply
438,252.84x = 657,454.68 × 138,728.88 - Step 4: Simplify right side
438,252.84x = 91,207,951,407.16 - Step 5: Solve for x
x = 91,207,951,407.16/438,252.84 - Step 6: Final answer
x = 208,117.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.