Finding the Fourth Proportional to 274,556.51, 378,885.06 and 153,698.79
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Solution
The fourth proportional to 274,556.51, 378,885.06 and 153,698.79 is: 212,102.70
Step by Step Solution
- Step 1: Write the proportion equation
274,556.51 : 378,885.06 = 153,698.79 : x - Step 2: Convert to fraction form
274,556.51/378,885.06 = 153,698.79/x - Step 3: Cross multiply
274,556.51x = 378,885.06 × 153,698.79 - Step 4: Simplify right side
274,556.51x = 58,234,175,271.08 - Step 5: Solve for x
x = 58,234,175,271.08/274,556.51 - Step 6: Final answer
x = 212,102.70
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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.