Finding the Fourth Proportional to 392,058.75, 541,041.08 and 213,210.75
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Solution
The fourth proportional to 392,058.75, 541,041.08 and 213,210.75 is: 294,230.84
Step by Step Solution
- Step 1: Write the proportion equation
392,058.75 : 541,041.08 = 213,210.75 : x - Step 2: Convert to fraction form
392,058.75/541,041.08 = 213,210.75/x - Step 3: Cross multiply
392,058.75x = 541,041.08 × 213,210.75 - Step 4: Simplify right side
392,058.75x = 115,355,773,381.56 - Step 5: Solve for x
x = 115,355,773,381.56/392,058.75 - Step 6: Final answer
x = 294,230.84
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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.