Finding the Fourth Proportional to 356,312.60, 491,711.28 and 195,177.68
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Solution
The fourth proportional to 356,312.60, 491,711.28 and 195,177.68 is: 269,345.14
Step by Step Solution
- Step 1: Write the proportion equation
356,312.60 : 491,711.28 = 195,177.68 : x - Step 2: Convert to fraction form
356,312.60/491,711.28 = 195,177.68/x - Step 3: Cross multiply
356,312.60x = 491,711.28 × 195,177.68 - Step 4: Simplify right side
356,312.60x = 95,971,066,860.23 - Step 5: Solve for x
x = 95,971,066,860.23/356,312.60 - Step 6: Final answer
x = 269,345.14
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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.