Finding the Fourth Proportional to 361,473.84, 498,820.68 and 218,220.48
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Solution
The fourth proportional to 361,473.84, 498,820.68 and 218,220.48 is: 301,136.28
Step by Step Solution
- Step 1: Write the proportion equation
361,473.84 : 498,820.68 = 218,220.48 : x - Step 2: Convert to fraction form
361,473.84/498,820.68 = 218,220.48/x - Step 3: Cross multiply
361,473.84x = 498,820.68 × 218,220.48 - Step 4: Simplify right side
361,473.84x = 108,852,888,223.53 - Step 5: Solve for x
x = 108,852,888,223.53/361,473.84 - Step 6: Final answer
x = 301,136.28
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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.