Finding the Fourth Proportional to 286,642.79, 430,030.44 and 84,241.91
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Solution
The fourth proportional to 286,642.79, 430,030.44 and 84,241.91 is: 126,382.33
Step by Step Solution
- Step 1: Write the proportion equation
286,642.79 : 430,030.44 = 84,241.91 : x - Step 2: Convert to fraction form
286,642.79/430,030.44 = 84,241.91/x - Step 3: Cross multiply
286,642.79x = 430,030.44 × 84,241.91 - Step 4: Simplify right side
286,642.79x = 36,226,583,473.59 - Step 5: Solve for x
x = 36,226,583,473.59/286,642.79 - Step 6: Final answer
x = 126,382.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.