Finding the Fourth Proportional to 369,861.40, 510,404.42 and 216,867.99
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Solution
The fourth proportional to 369,861.40, 510,404.42 and 216,867.99 is: 299,275.30
Step by Step Solution
- Step 1: Write the proportion equation
369,861.40 : 510,404.42 = 216,867.99 : x - Step 2: Convert to fraction form
369,861.40/510,404.42 = 216,867.99/x - Step 3: Cross multiply
369,861.40x = 510,404.42 × 216,867.99 - Step 4: Simplify right side
369,861.40x = 110,690,380,652.52 - Step 5: Solve for x
x = 110,690,380,652.52/369,861.40 - Step 6: Final answer
x = 299,275.30
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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.