Finding the Fourth Proportional to 230,586.60, 318,117.69 and 139,909.26
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Solution
The fourth proportional to 230,586.60, 318,117.69 and 139,909.26 is: 193,019.07
Step by Step Solution
- Step 1: Write the proportion equation
230,586.60 : 318,117.69 = 139,909.26 : x - Step 2: Convert to fraction form
230,586.60/318,117.69 = 139,909.26/x - Step 3: Cross multiply
230,586.60x = 318,117.69 × 139,909.26 - Step 4: Simplify right side
230,586.60x = 44,507,610,600.81 - Step 5: Solve for x
x = 44,507,610,600.81/230,586.60 - Step 6: Final answer
x = 193,019.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.