Finding the Fourth Proportional to 286,635.68, 395,538.96 and 159,303.52
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Solution
The fourth proportional to 286,635.68, 395,538.96 and 159,303.52 is: 219,828.70
Step by Step Solution
- Step 1: Write the proportion equation
286,635.68 : 395,538.96 = 159,303.52 : x - Step 2: Convert to fraction form
286,635.68/395,538.96 = 159,303.52/x - Step 3: Cross multiply
286,635.68x = 395,538.96 × 159,303.52 - Step 4: Simplify right side
286,635.68x = 63,010,748,625.14 - Step 5: Solve for x
x = 63,010,748,625.14/286,635.68 - Step 6: Final answer
x = 219,828.70
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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.