Finding the Fourth Proportional to 386,812.55, 533,802.20 and 214,733.04
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Solution
The fourth proportional to 386,812.55, 533,802.20 and 214,733.04 is: 296,332.09
Step by Step Solution
- Step 1: Write the proportion equation
386,812.55 : 533,802.20 = 214,733.04 : x - Step 2: Convert to fraction form
386,812.55/533,802.20 = 214,733.04/x - Step 3: Cross multiply
386,812.55x = 533,802.20 × 214,733.04 - Step 4: Simplify right side
386,812.55x = 114,624,968,091.02 - Step 5: Solve for x
x = 114,624,968,091.02/386,812.55 - Step 6: Final answer
x = 296,332.09
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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.