Finding the Fourth Proportional to 138,374.61, 207,567.38 and 38,543.53
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Solution
The fourth proportional to 138,374.61, 207,567.38 and 38,543.53 is: 57,816.82
Step by Step Solution
- Step 1: Write the proportion equation
138,374.61 : 207,567.38 = 38,543.53 : x - Step 2: Convert to fraction form
138,374.61/207,567.38 = 38,543.53/x - Step 3: Cross multiply
138,374.61x = 207,567.38 × 38,543.53 - Step 4: Simplify right side
138,374.61x = 8,000,379,538.05 - Step 5: Solve for x
x = 8,000,379,538.05/138,374.61 - Step 6: Final answer
x = 57,816.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.