Finding the Fourth Proportional to 226,377.98, 312,428.58 and 135,783.80
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Solution
The fourth proportional to 226,377.98, 312,428.58 and 135,783.80 is: 187,397.82
Step by Step Solution
- Step 1: Write the proportion equation
226,377.98 : 312,428.58 = 135,783.80 : x - Step 2: Convert to fraction form
226,377.98/312,428.58 = 135,783.80/x - Step 3: Cross multiply
226,377.98x = 312,428.58 × 135,783.80 - Step 4: Simplify right side
226,377.98x = 42,422,739,821.00 - Step 5: Solve for x
x = 42,422,739,821.00/226,377.98 - Step 6: Final answer
x = 187,397.82
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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.