Finding the Fourth Proportional to 245,088.15, 338,214.89 and 136,189.67
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Solution
The fourth proportional to 245,088.15, 338,214.89 and 136,189.67 is: 187,937.99
Step by Step Solution
- Step 1: Write the proportion equation
245,088.15 : 338,214.89 = 136,189.67 : x - Step 2: Convert to fraction form
245,088.15/338,214.89 = 136,189.67/x - Step 3: Cross multiply
245,088.15x = 338,214.89 × 136,189.67 - Step 4: Simplify right side
245,088.15x = 46,061,374,258.19 - Step 5: Solve for x
x = 46,061,374,258.19/245,088.15 - Step 6: Final answer
x = 187,937.99
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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.