Finding the Fourth Proportional to 422,277.55, 633,417.32 and 102,428.09
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Solution
The fourth proportional to 422,277.55, 633,417.32 and 102,428.09 is: 153,642.38
Step by Step Solution
- Step 1: Write the proportion equation
422,277.55 : 633,417.32 = 102,428.09 : x - Step 2: Convert to fraction form
422,277.55/633,417.32 = 102,428.09/x - Step 3: Cross multiply
422,277.55x = 633,417.32 × 102,428.09 - Step 4: Simplify right side
422,277.55x = 64,879,728,711.63 - Step 5: Solve for x
x = 64,879,728,711.63/422,277.55 - Step 6: Final answer
x = 153,642.38
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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.