Finding the Fourth Proportional to 231,424.99, 319,259.95 and 159,905.23
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Solution
The fourth proportional to 231,424.99, 319,259.95 and 159,905.23 is: 220,595.61
Step by Step Solution
- Step 1: Write the proportion equation
231,424.99 : 319,259.95 = 159,905.23 : x - Step 2: Convert to fraction form
231,424.99/319,259.95 = 159,905.23/x - Step 3: Cross multiply
231,424.99x = 319,259.95 × 159,905.23 - Step 4: Simplify right side
231,424.99x = 51,051,335,734.54 - Step 5: Solve for x
x = 51,051,335,734.54/231,424.99 - Step 6: Final answer
x = 220,595.61
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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.