Finding the Fourth Proportional to 218,944.74, 302,143.56 and 118,342.74
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Solution
The fourth proportional to 218,944.74, 302,143.56 and 118,342.74 is: 163,312.88
Step by Step Solution
- Step 1: Write the proportion equation
218,944.74 : 302,143.56 = 118,342.74 : x - Step 2: Convert to fraction form
218,944.74/302,143.56 = 118,342.74/x - Step 3: Cross multiply
218,944.74x = 302,143.56 × 118,342.74 - Step 4: Simplify right side
218,944.74x = 35,756,496,763.75 - Step 5: Solve for x
x = 35,756,496,763.75/218,944.74 - Step 6: Final answer
x = 163,312.88
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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.