Finding the Fourth Proportional to 319,539.84, 479,557.62 and 120,041.70
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Solution
The fourth proportional to 319,539.84, 479,557.62 and 120,041.70 is: 180,155.66
Step by Step Solution
- Step 1: Write the proportion equation
319,539.84 : 479,557.62 = 120,041.70 : x - Step 2: Convert to fraction form
319,539.84/479,557.62 = 120,041.70/x - Step 3: Cross multiply
319,539.84x = 479,557.62 × 120,041.70 - Step 4: Simplify right side
319,539.84x = 57,566,911,952.75 - Step 5: Solve for x
x = 57,566,911,952.75/319,539.84 - Step 6: Final answer
x = 180,155.66
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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.