Finding the Fourth Proportional to 354,364.71, 489,033.11 and 216,565.94
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Solution
The fourth proportional to 354,364.71, 489,033.11 and 216,565.94 is: 298,866.99
Step by Step Solution
- Step 1: Write the proportion equation
354,364.71 : 489,033.11 = 216,565.94 : x - Step 2: Convert to fraction form
354,364.71/489,033.11 = 216,565.94/x - Step 3: Cross multiply
354,364.71x = 489,033.11 × 216,565.94 - Step 4: Simplify right side
354,364.71x = 105,907,915,158.27 - Step 5: Solve for x
x = 105,907,915,158.27/354,364.71 - Step 6: Final answer
x = 298,866.99
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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.