Finding the Fourth Proportional to 260,854.86, 391,430.36 and 111,079.53
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Solution
The fourth proportional to 260,854.86, 391,430.36 and 111,079.53 is: 166,682.35
Step by Step Solution
- Step 1: Write the proportion equation
260,854.86 : 391,430.36 = 111,079.53 : x - Step 2: Convert to fraction form
260,854.86/391,430.36 = 111,079.53/x - Step 3: Cross multiply
260,854.86x = 391,430.36 × 111,079.53 - Step 4: Simplify right side
260,854.86x = 43,479,899,861.13 - Step 5: Solve for x
x = 43,479,899,861.13/260,854.86 - Step 6: Final answer
x = 166,682.35
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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.