Finding the Fourth Proportional to 245,419.85, 338,565.68 and 143,449.63
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Solution
The fourth proportional to 245,419.85, 338,565.68 and 143,449.63 is: 197,894.02
Step by Step Solution
- Step 1: Write the proportion equation
245,419.85 : 338,565.68 = 143,449.63 : x - Step 2: Convert to fraction form
245,419.85/338,565.68 = 143,449.63/x - Step 3: Cross multiply
245,419.85x = 338,565.68 × 143,449.63 - Step 4: Simplify right side
245,419.85x = 48,567,121,526.70 - Step 5: Solve for x
x = 48,567,121,526.70/245,419.85 - Step 6: Final answer
x = 197,894.02
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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.