Finding the Fourth Proportional to 368,979.57, 509,135.58 and 207,824.40
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Solution
The fourth proportional to 368,979.57, 509,135.58 and 207,824.40 is: 286,766.00
Step by Step Solution
- Step 1: Write the proportion equation
368,979.57 : 509,135.58 = 207,824.40 : x - Step 2: Convert to fraction form
368,979.57/509,135.58 = 207,824.40/x - Step 3: Cross multiply
368,979.57x = 509,135.58 × 207,824.40 - Step 4: Simplify right side
368,979.57x = 105,810,796,432.15 - Step 5: Solve for x
x = 105,810,796,432.15/368,979.57 - Step 6: Final answer
x = 286,766.00
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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.