Finding the Fourth Proportional to 386,778.93, 533,746.49 and 214,686.78
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Solution
The fourth proportional to 386,778.93, 533,746.49 and 214,686.78 is: 296,263.07
Step by Step Solution
- Step 1: Write the proportion equation
386,778.93 : 533,746.49 = 214,686.78 : x - Step 2: Convert to fraction form
386,778.93/533,746.49 = 214,686.78/x - Step 3: Cross multiply
386,778.93x = 533,746.49 × 214,686.78 - Step 4: Simplify right side
386,778.93x = 114,588,314,200.97 - Step 5: Solve for x
x = 114,588,314,200.97/386,778.93 - Step 6: Final answer
x = 296,263.07
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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.