Finding the Fourth Proportional to 387,671.44, 581,585.28 and 138,346.96
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Solution
The fourth proportional to 387,671.44, 581,585.28 and 138,346.96 is: 207,548.32
Step by Step Solution
- Step 1: Write the proportion equation
387,671.44 : 581,585.28 = 138,346.96 : x - Step 2: Convert to fraction form
387,671.44/581,585.28 = 138,346.96/x - Step 3: Cross multiply
387,671.44x = 581,585.28 × 138,346.96 - Step 4: Simplify right side
387,671.44x = 80,460,555,468.75 - Step 5: Solve for x
x = 80,460,555,468.75/387,671.44 - Step 6: Final answer
x = 207,548.32
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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.