Finding the Fourth Proportional to 402,427.70, 603,722.55 and 118,117.70
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Solution
The fourth proportional to 402,427.70, 603,722.55 and 118,117.70 is: 177,200.32
Step by Step Solution
- Step 1: Write the proportion equation
402,427.70 : 603,722.55 = 118,117.70 : x - Step 2: Convert to fraction form
402,427.70/603,722.55 = 118,117.70/x - Step 3: Cross multiply
402,427.70x = 603,722.55 × 118,117.70 - Step 4: Simplify right side
402,427.70x = 71,310,319,044.14 - Step 5: Solve for x
x = 71,310,319,044.14/402,427.70 - Step 6: Final answer
x = 177,200.32
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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.