Finding the Fourth Proportional to 313,340.10, 432,363.70 and 179,178.18
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Solution
The fourth proportional to 313,340.10, 432,363.70 and 179,178.18 is: 247,239.79
Step by Step Solution
- Step 1: Write the proportion equation
313,340.10 : 432,363.70 = 179,178.18 : x - Step 2: Convert to fraction form
313,340.10/432,363.70 = 179,178.18/x - Step 3: Cross multiply
313,340.10x = 432,363.70 × 179,178.18 - Step 4: Simplify right side
313,340.10x = 77,470,140,864.07 - Step 5: Solve for x
x = 77,470,140,864.07/313,340.10 - Step 6: Final answer
x = 247,239.79
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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.