Finding the Fourth Proportional to 313,542.09, 432,690.35 and 170,302.14
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Solution
The fourth proportional to 313,542.09, 432,690.35 and 170,302.14 is: 235,018.18
Step by Step Solution
- Step 1: Write the proportion equation
313,542.09 : 432,690.35 = 170,302.14 : x - Step 2: Convert to fraction form
313,542.09/432,690.35 = 170,302.14/x - Step 3: Cross multiply
313,542.09x = 432,690.35 × 170,302.14 - Step 4: Simplify right side
313,542.09x = 73,688,091,710.84 - Step 5: Solve for x
x = 73,688,091,710.84/313,542.09 - Step 6: Final answer
x = 235,018.18
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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.