Finding the Fourth Proportional to 386,374.07, 533,177.19 and 214,278.54
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Solution
The fourth proportional to 386,374.07, 533,177.19 and 214,278.54 is: 295,693.84
Step by Step Solution
- Step 1: Write the proportion equation
386,374.07 : 533,177.19 = 214,278.54 : x - Step 2: Convert to fraction form
386,374.07/533,177.19 = 214,278.54/x - Step 3: Cross multiply
386,374.07x = 533,177.19 × 214,278.54 - Step 4: Simplify right side
386,374.07x = 114,248,429,834.50 - Step 5: Solve for x
x = 114,248,429,834.50/386,374.07 - Step 6: Final answer
x = 295,693.84
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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.