Finding the Fourth Proportional to 207,854.87, 286,835.69 and 117,209.18
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Solution
The fourth proportional to 207,854.87, 286,835.69 and 117,209.18 is: 161,746.39
Step by Step Solution
- Step 1: Write the proportion equation
207,854.87 : 286,835.69 = 117,209.18 : x - Step 2: Convert to fraction form
207,854.87/286,835.69 = 117,209.18/x - Step 3: Cross multiply
207,854.87x = 286,835.69 × 117,209.18 - Step 4: Simplify right side
207,854.87x = 33,619,773,999.41 - Step 5: Solve for x
x = 33,619,773,999.41/207,854.87 - Step 6: Final answer
x = 161,746.39
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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.