Finding the Fourth Proportional to 256,740.74, 385,072.20 and 98,946.26
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Solution
The fourth proportional to 256,740.74, 385,072.20 and 98,946.26 is: 148,404.39
Step by Step Solution
- Step 1: Write the proportion equation
256,740.74 : 385,072.20 = 98,946.26 : x - Step 2: Convert to fraction form
256,740.74/385,072.20 = 98,946.26/x - Step 3: Cross multiply
256,740.74x = 385,072.20 × 98,946.26 - Step 4: Simplify right side
256,740.74x = 38,101,454,019.97 - Step 5: Solve for x
x = 38,101,454,019.97/256,740.74 - Step 6: Final answer
x = 148,404.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.