Finding the Fourth Proportional to 319,371.12, 478,974.94 and 94,679.01
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Solution
The fourth proportional to 319,371.12, 478,974.94 and 94,679.01 is: 141,994.28
Step by Step Solution
- Step 1: Write the proportion equation
319,371.12 : 478,974.94 = 94,679.01 : x - Step 2: Convert to fraction form
319,371.12/478,974.94 = 94,679.01/x - Step 3: Cross multiply
319,371.12x = 478,974.94 × 94,679.01 - Step 4: Simplify right side
319,371.12x = 45,348,872,897.31 - Step 5: Solve for x
x = 45,348,872,897.31/319,371.12 - Step 6: Final answer
x = 141,994.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.