Finding the Fourth Proportional to 368,904.08, 509,104.68 and 207,810.32
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Solution
The fourth proportional to 368,904.08, 509,104.68 and 207,810.32 is: 286,787.85
Step by Step Solution
- Step 1: Write the proportion equation
368,904.08 : 509,104.68 = 207,810.32 : x - Step 2: Convert to fraction form
368,904.08/509,104.68 = 207,810.32/x - Step 3: Cross multiply
368,904.08x = 509,104.68 × 207,810.32 - Step 4: Simplify right side
368,904.08x = 105,797,206,464.30 - Step 5: Solve for x
x = 105,797,206,464.30/368,904.08 - Step 6: Final answer
x = 286,787.85
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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.