Finding the Fourth Proportional to 408,397.32, 563,545.16 and 227,079.99
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Solution
The fourth proportional to 408,397.32, 563,545.16 and 227,079.99 is: 313,346.40
Step by Step Solution
- Step 1: Write the proportion equation
408,397.32 : 563,545.16 = 227,079.99 : x - Step 2: Convert to fraction form
408,397.32/563,545.16 = 227,079.99/x - Step 3: Cross multiply
408,397.32x = 563,545.16 × 227,079.99 - Step 4: Simplify right side
408,397.32x = 127,969,828,161.95 - Step 5: Solve for x
x = 127,969,828,161.95/408,397.32 - Step 6: Final answer
x = 313,346.40
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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.