Finding the Fourth Proportional to 368,992.96, 509,142.65 and 207,813.49
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Solution
The fourth proportional to 368,992.96, 509,142.65 and 207,813.49 is: 286,744.52
Step by Step Solution
- Step 1: Write the proportion equation
368,992.96 : 509,142.65 = 207,813.49 : x - Step 2: Convert to fraction form
368,992.96/509,142.65 = 207,813.49/x - Step 3: Cross multiply
368,992.96x = 509,142.65 × 207,813.49 - Step 4: Simplify right side
368,992.96x = 105,806,708,692.42 - Step 5: Solve for x
x = 105,806,708,692.42/368,992.96 - Step 6: Final answer
x = 286,744.52
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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.