Finding the Fourth Proportional to 319,437.80, 479,156.70 and 97,821.80
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Solution
The fourth proportional to 319,437.80, 479,156.70 and 97,821.80 is: 146,732.70
Step by Step Solution
- Step 1: Write the proportion equation
319,437.80 : 479,156.70 = 97,821.80 : x - Step 2: Convert to fraction form
319,437.80/479,156.70 = 97,821.80/x - Step 3: Cross multiply
319,437.80x = 479,156.70 × 97,821.80 - Step 4: Simplify right side
319,437.80x = 46,871,970,876.06 - Step 5: Solve for x
x = 46,871,970,876.06/319,437.80 - Step 6: Final answer
x = 146,732.70
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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.