Finding the Fourth Proportional to 286,808.76, 395,805.68 and 157,752.68
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Solution
The fourth proportional to 286,808.76, 395,805.68 and 157,752.68 is: 217,703.96
Step by Step Solution
- Step 1: Write the proportion equation
286,808.76 : 395,805.68 = 157,752.68 : x - Step 2: Convert to fraction form
286,808.76/395,805.68 = 157,752.68/x - Step 3: Cross multiply
286,808.76x = 395,805.68 × 157,752.68 - Step 4: Simplify right side
286,808.76x = 62,439,404,011.43 - Step 5: Solve for x
x = 62,439,404,011.43/286,808.76 - Step 6: Final answer
x = 217,703.96
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1.5x scale
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.