Finding the Fourth Proportional to 402,447.76, 555,366.71 and 221,159.63
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Solution
The fourth proportional to 402,447.76, 555,366.71 and 221,159.63 is: 305,194.14
Step by Step Solution
- Step 1: Write the proportion equation
402,447.76 : 555,366.71 = 221,159.63 : x - Step 2: Convert to fraction form
402,447.76/555,366.71 = 221,159.63/x - Step 3: Cross multiply
402,447.76x = 555,366.71 × 221,159.63 - Step 4: Simplify right side
402,447.76x = 122,824,698,039.23 - Step 5: Solve for x
x = 122,824,698,039.23/402,447.76 - Step 6: Final answer
x = 305,194.14
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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.