Finding the Fourth Proportional to 286,811.13, 395,799.69 and 159,483.99
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Solution
The fourth proportional to 286,811.13, 395,799.69 and 159,483.99 is: 220,088.09
Step by Step Solution
- Step 1: Write the proportion equation
286,811.13 : 395,799.69 = 159,483.99 : x - Step 2: Convert to fraction form
286,811.13/395,799.69 = 159,483.99/x - Step 3: Cross multiply
286,811.13x = 395,799.69 × 159,483.99 - Step 4: Simplify right side
286,811.13x = 63,123,713,801.96 - Step 5: Solve for x
x = 63,123,713,801.96/286,811.13 - Step 6: Final answer
x = 220,088.09
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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.