Finding the Fourth Proportional to 286,557.09, 395,430.71 and 159,225.09
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Solution
The fourth proportional to 286,557.09, 395,430.71 and 159,225.09 is: 219,720.58
Step by Step Solution
- Step 1: Write the proportion equation
286,557.09 : 395,430.71 = 159,225.09 : x - Step 2: Convert to fraction form
286,557.09/395,430.71 = 159,225.09/x - Step 3: Cross multiply
286,557.09x = 395,430.71 × 159,225.09 - Step 4: Simplify right side
286,557.09x = 62,962,489,592.39 - Step 5: Solve for x
x = 62,962,489,592.39/286,557.09 - Step 6: Final answer
x = 219,720.58
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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.