Finding the Fourth Proportional to 458,111.08, 686,602.86 and 218,351.08
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Solution
The fourth proportional to 458,111.08, 686,602.86 and 218,351.08 is: 327,257.91
Step by Step Solution
- Step 1: Write the proportion equation
458,111.08 : 686,602.86 = 218,351.08 : x - Step 2: Convert to fraction form
458,111.08/686,602.86 = 218,351.08/x - Step 3: Cross multiply
458,111.08x = 686,602.86 × 218,351.08 - Step 4: Simplify right side
458,111.08x = 149,920,476,012.09 - Step 5: Solve for x
x = 149,920,476,012.09/458,111.08 - Step 6: Final answer
x = 327,257.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.