Finding the Fourth Proportional to 458,201.75, 687,394.80 and 158,675.70
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Solution
The fourth proportional to 458,201.75, 687,394.80 and 158,675.70 is: 238,045.47
Step by Step Solution
- Step 1: Write the proportion equation
458,201.75 : 687,394.80 = 158,675.70 : x - Step 2: Convert to fraction form
458,201.75/687,394.80 = 158,675.70/x - Step 3: Cross multiply
458,201.75x = 687,394.80 × 158,675.70 - Step 4: Simplify right side
458,201.75x = 109,072,851,066.36 - Step 5: Solve for x
x = 109,072,851,066.36/458,201.75 - Step 6: Final answer
x = 238,045.47
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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.