Finding the Fourth Proportional to 145,625.70, 218,438.55 and 40,445.70
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Solution
The fourth proportional to 145,625.70, 218,438.55 and 40,445.70 is: 60,668.55
Step by Step Solution
- Step 1: Write the proportion equation
145,625.70 : 218,438.55 = 40,445.70 : x - Step 2: Convert to fraction form
145,625.70/218,438.55 = 40,445.70/x - Step 3: Cross multiply
145,625.70x = 218,438.55 × 40,445.70 - Step 4: Simplify right side
145,625.70x = 8,834,900,061.74 - Step 5: Solve for x
x = 8,834,900,061.74/145,625.70 - Step 6: Final answer
x = 60,668.55
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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.