Finding the Fourth Proportional to 402,335.28, 555,232.50 and 221,058.95
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Solution
The fourth proportional to 402,335.28, 555,232.50 and 221,058.95 is: 305,066.74
Step by Step Solution
- Step 1: Write the proportion equation
402,335.28 : 555,232.50 = 221,058.95 : x - Step 2: Convert to fraction form
402,335.28/555,232.50 = 221,058.95/x - Step 3: Cross multiply
402,335.28x = 555,232.50 × 221,058.95 - Step 4: Simplify right side
402,335.28x = 122,739,110,679.71 - Step 5: Solve for x
x = 122,739,110,679.71/402,335.28 - Step 6: Final answer
x = 305,066.74
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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.