Finding the Fourth Proportional to 259,820.81, 358,582.97 and 216,136.19
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Solution
The fourth proportional to 259,820.81, 358,582.97 and 216,136.19 is: 298,293.11
Step by Step Solution
- Step 1: Write the proportion equation
259,820.81 : 358,582.97 = 216,136.19 : x - Step 2: Convert to fraction form
259,820.81/358,582.97 = 216,136.19/x - Step 3: Cross multiply
259,820.81x = 358,582.97 × 216,136.19 - Step 4: Simplify right side
259,820.81x = 77,502,756,934.68 - Step 5: Solve for x
x = 77,502,756,934.68/259,820.81 - Step 6: Final answer
x = 298,293.11
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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.