Finding the Fourth Proportional to 386,722.53, 533,681.19 and 214,643.70
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Solution
The fourth proportional to 386,722.53, 533,681.19 and 214,643.70 is: 296,210.58
Step by Step Solution
- Step 1: Write the proportion equation
386,722.53 : 533,681.19 = 214,643.70 : x - Step 2: Convert to fraction form
386,722.53/533,681.19 = 214,643.70/x - Step 3: Cross multiply
386,722.53x = 533,681.19 × 214,643.70 - Step 4: Simplify right side
386,722.53x = 114,551,305,242.00 - Step 5: Solve for x
x = 114,551,305,242.00/386,722.53 - Step 6: Final answer
x = 296,210.58
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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.