Finding the Fourth Proportional to 313,117.89, 432,098.80 and 169,876.88
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Solution
The fourth proportional to 313,117.89, 432,098.80 and 169,876.88 is: 234,427.99
Step by Step Solution
- Step 1: Write the proportion equation
313,117.89 : 432,098.80 = 169,876.88 : x - Step 2: Convert to fraction form
313,117.89/432,098.80 = 169,876.88/x - Step 3: Cross multiply
313,117.89x = 432,098.80 × 169,876.88 - Step 4: Simplify right side
313,117.89x = 73,403,595,986.49 - Step 5: Solve for x
x = 73,403,595,986.49/313,117.89 - Step 6: Final answer
x = 234,427.99
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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.