Finding the Fourth Proportional to 360,639.20, 497,638.74 and 207,727.13
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Solution
The fourth proportional to 360,639.20, 497,638.74 and 207,727.13 is: 286,638.45
Step by Step Solution
- Step 1: Write the proportion equation
360,639.20 : 497,638.74 = 207,727.13 : x - Step 2: Convert to fraction form
360,639.20/497,638.74 = 207,727.13/x - Step 3: Cross multiply
360,639.20x = 497,638.74 × 207,727.13 - Step 4: Simplify right side
360,639.20x = 103,373,063,710.19 - Step 5: Solve for x
x = 103,373,063,710.19/360,639.20 - Step 6: Final answer
x = 286,638.45
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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.