Finding the Fourth Proportional to 345,987.84, 477,463.68 and 187,011.84
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Solution
The fourth proportional to 345,987.84, 477,463.68 and 187,011.84 is: 258,076.59
Step by Step Solution
- Step 1: Write the proportion equation
345,987.84 : 477,463.68 = 187,011.84 : x - Step 2: Convert to fraction form
345,987.84/477,463.68 = 187,011.84/x - Step 3: Cross multiply
345,987.84x = 477,463.68 × 187,011.84 - Step 4: Simplify right side
345,987.84x = 89,291,361,329.97 - Step 5: Solve for x
x = 89,291,361,329.97/345,987.84 - Step 6: Final answer
x = 258,076.59
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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.