Finding the Fourth Proportional to 205,639.60, 307,854.60 and 153,281.20
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Solution
The fourth proportional to 205,639.60, 307,854.60 and 153,281.20 is: 229,470.99
Step by Step Solution
- Step 1: Write the proportion equation
205,639.60 : 307,854.60 = 153,281.20 : x - Step 2: Convert to fraction form
205,639.60/307,854.60 = 153,281.20/x - Step 3: Cross multiply
205,639.60x = 307,854.60 × 153,281.20 - Step 4: Simplify right side
205,639.60x = 47,188,322,513.52 - Step 5: Solve for x
x = 47,188,322,513.52/205,639.60 - Step 6: Final answer
x = 229,470.99
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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.