Finding the Fourth Proportional to 359,368.60, 539,117.70 and 149,027.80
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Solution
The fourth proportional to 359,368.60, 539,117.70 and 149,027.80 is: 223,568.57
Step by Step Solution
- Step 1: Write the proportion equation
359,368.60 : 539,117.70 = 149,027.80 : x - Step 2: Convert to fraction form
359,368.60/539,117.70 = 149,027.80/x - Step 3: Cross multiply
359,368.60x = 539,117.70 × 149,027.80 - Step 4: Simplify right side
359,368.60x = 80,343,524,772.06 - Step 5: Solve for x
x = 80,343,524,772.06/359,368.60 - Step 6: Final answer
x = 223,568.57
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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.