Finding the Fourth Proportional to 413,525.10, 620,374.05 and 133,070.70
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Solution
The fourth proportional to 413,525.10, 620,374.05 and 133,070.70 is: 199,633.85
Step by Step Solution
- Step 1: Write the proportion equation
413,525.10 : 620,374.05 = 133,070.70 : x - Step 2: Convert to fraction form
413,525.10/620,374.05 = 133,070.70/x - Step 3: Cross multiply
413,525.10x = 620,374.05 × 133,070.70 - Step 4: Simplify right side
413,525.10x = 82,553,609,095.34 - Step 5: Solve for x
x = 82,553,609,095.34/413,525.10 - Step 6: Final answer
x = 199,633.85
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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.