Finding the Fourth Proportional to 369,439.27, 509,815.99 and 208,292.92
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Solution
The fourth proportional to 369,439.27, 509,815.99 and 208,292.92 is: 287,438.48
Step by Step Solution
- Step 1: Write the proportion equation
369,439.27 : 509,815.99 = 208,292.92 : x - Step 2: Convert to fraction form
369,439.27/509,815.99 = 208,292.92/x - Step 3: Cross multiply
369,439.27x = 509,815.99 × 208,292.92 - Step 4: Simplify right side
369,439.27x = 106,191,061,219.79 - Step 5: Solve for x
x = 106,191,061,219.79/369,439.27 - Step 6: Final answer
x = 287,438.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.