Finding the Fourth Proportional to 470,381.36, 649,126.80 and 255,521.42
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Solution
The fourth proportional to 470,381.36, 649,126.80 and 255,521.42 is: 352,619.84
Step by Step Solution
- Step 1: Write the proportion equation
470,381.36 : 649,126.80 = 255,521.42 : x - Step 2: Convert to fraction form
470,381.36/649,126.80 = 255,521.42/x - Step 3: Cross multiply
470,381.36x = 649,126.80 × 255,521.42 - Step 4: Simplify right side
470,381.36x = 165,865,801,696.06 - Step 5: Solve for x
x = 165,865,801,696.06/470,381.36 - Step 6: Final answer
x = 352,619.84
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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.