Finding the Fourth Proportional to 245,271.12, 338,482.12 and 137,861.84
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Solution
The fourth proportional to 245,271.12, 338,482.12 and 137,861.84 is: 190,253.82
Step by Step Solution
- Step 1: Write the proportion equation
245,271.12 : 338,482.12 = 137,861.84 : x - Step 2: Convert to fraction form
245,271.12/338,482.12 = 137,861.84/x - Step 3: Cross multiply
245,271.12x = 338,482.12 × 137,861.84 - Step 4: Simplify right side
245,271.12x = 46,663,767,870.30 - Step 5: Solve for x
x = 46,663,767,870.30/245,271.12 - Step 6: Final answer
x = 190,253.82
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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.