Finding the Fourth Proportional to 218,912.84, 301,912.86 and 151,038.08
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Solution
The fourth proportional to 218,912.84, 301,912.86 and 151,038.08 is: 208,303.63
Step by Step Solution
- Step 1: Write the proportion equation
218,912.84 : 301,912.86 = 151,038.08 : x - Step 2: Convert to fraction form
218,912.84/301,912.86 = 151,038.08/x - Step 3: Cross multiply
218,912.84x = 301,912.86 × 151,038.08 - Step 4: Simplify right side
218,912.84x = 45,600,338,701.71 - Step 5: Solve for x
x = 45,600,338,701.71/218,912.84 - Step 6: Final answer
x = 208,303.63
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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.