Finding the Fourth Proportional to 445,539.80, 668,309.70 and 235,587.80
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Solution
The fourth proportional to 445,539.80, 668,309.70 and 235,587.80 is: 353,381.70
Step by Step Solution
- Step 1: Write the proportion equation
445,539.80 : 668,309.70 = 235,587.80 : x - Step 2: Convert to fraction form
445,539.80/668,309.70 = 235,587.80/x - Step 3: Cross multiply
445,539.80x = 668,309.70 × 235,587.80 - Step 4: Simplify right side
445,539.80x = 157,445,611,941.66 - Step 5: Solve for x
x = 157,445,611,941.66/445,539.80 - Step 6: Final answer
x = 353,381.70
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1.5x scale
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.