Finding the Fourth Proportional to 368,842.01, 509,050.44 and 207,728.55
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Solution
The fourth proportional to 368,842.01, 509,050.44 and 207,728.55 is: 286,692.70
Step by Step Solution
- Step 1: Write the proportion equation
368,842.01 : 509,050.44 = 207,728.55 : x - Step 2: Convert to fraction form
368,842.01/509,050.44 = 207,728.55/x - Step 3: Cross multiply
368,842.01x = 509,050.44 × 207,728.55 - Step 4: Simplify right side
368,842.01x = 105,744,309,778.06 - Step 5: Solve for x
x = 105,744,309,778.06/368,842.01 - Step 6: Final answer
x = 286,692.70
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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.