Finding the Fourth Proportional to 368,995.22, 509,145.75 and 207,815.75
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Solution
The fourth proportional to 368,995.22, 509,145.75 and 207,815.75 is: 286,747.63
Step by Step Solution
- Step 1: Write the proportion equation
368,995.22 : 509,145.75 = 207,815.75 : x - Step 2: Convert to fraction form
368,995.22/509,145.75 = 207,815.75/x - Step 3: Cross multiply
368,995.22x = 509,145.75 × 207,815.75 - Step 4: Simplify right side
368,995.22x = 105,808,503,349.83 - Step 5: Solve for x
x = 105,808,503,349.83/368,995.22 - Step 6: Final answer
x = 286,747.63
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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.