Finding the Fourth Proportional to 281,030.76, 387,814.23 and 153,703.62
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Solution
The fourth proportional to 281,030.76, 387,814.23 and 153,703.62 is: 212,106.50
Step by Step Solution
- Step 1: Write the proportion equation
281,030.76 : 387,814.23 = 153,703.62 : x - Step 2: Convert to fraction form
281,030.76/387,814.23 = 153,703.62/x - Step 3: Cross multiply
281,030.76x = 387,814.23 × 153,703.62 - Step 4: Simplify right side
281,030.76x = 59,608,451,038.51 - Step 5: Solve for x
x = 59,608,451,038.51/281,030.76 - Step 6: Final answer
x = 212,106.50
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1.5x scale
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.