Finding the Fourth Proportional to 408,083.80, 612,125.70 and 158,765.80
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Solution
The fourth proportional to 408,083.80, 612,125.70 and 158,765.80 is: 238,148.70
Step by Step Solution
- Step 1: Write the proportion equation
408,083.80 : 612,125.70 = 158,765.80 : x - Step 2: Convert to fraction form
408,083.80/612,125.70 = 158,765.80/x - Step 3: Cross multiply
408,083.80x = 612,125.70 × 158,765.80 - Step 4: Simplify right side
408,083.80x = 97,184,626,461.06 - Step 5: Solve for x
x = 97,184,626,461.06/408,083.80 - Step 6: Final answer
x = 238,148.70
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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.