Finding the Fourth Proportional to 281,038.95, 387,842.99 and 153,714.54
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Solution
The fourth proportional to 281,038.95, 387,842.99 and 153,714.54 is: 212,131.12
Step by Step Solution
- Step 1: Write the proportion equation
281,038.95 : 387,842.99 = 153,714.54 : x - Step 2: Convert to fraction form
281,038.95/387,842.99 = 153,714.54/x - Step 3: Cross multiply
281,038.95x = 387,842.99 × 153,714.54 - Step 4: Simplify right side
281,038.95x = 59,617,107,485.91 - Step 5: Solve for x
x = 59,617,107,485.91/281,038.95 - Step 6: Final answer
x = 212,131.12
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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.