Finding the Fourth Proportional to 138,656.62, 207,968.86 and 38,824.80
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Solution
The fourth proportional to 138,656.62, 207,968.86 and 38,824.80 is: 58,232.70
Step by Step Solution
- Step 1: Write the proportion equation
138,656.62 : 207,968.86 = 38,824.80 : x - Step 2: Convert to fraction form
138,656.62/207,968.86 = 38,824.80/x - Step 3: Cross multiply
138,656.62x = 207,968.86 × 38,824.80 - Step 4: Simplify right side
138,656.62x = 8,074,349,395.73 - Step 5: Solve for x
x = 8,074,349,395.73/138,656.62 - Step 6: Final answer
x = 58,232.70
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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.