Finding the Fourth Proportional to 316,107.29, 436,268.01 and 207,303.18
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Solution
The fourth proportional to 316,107.29, 436,268.01 and 207,303.18 is: 286,104.59
Step by Step Solution
- Step 1: Write the proportion equation
316,107.29 : 436,268.01 = 207,303.18 : x - Step 2: Convert to fraction form
316,107.29/436,268.01 = 207,303.18/x - Step 3: Cross multiply
316,107.29x = 436,268.01 × 207,303.18 - Step 4: Simplify right side
316,107.29x = 90,439,746,234.58 - Step 5: Solve for x
x = 90,439,746,234.58/316,107.29 - Step 6: Final answer
x = 286,104.59
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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.