Finding the Fourth Proportional to 275,753.80, 413,630.70 and 157,437.10
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Solution
The fourth proportional to 275,753.80, 413,630.70 and 157,437.10 is: 236,155.65
Step by Step Solution
- Step 1: Write the proportion equation
275,753.80 : 413,630.70 = 157,437.10 : x - Step 2: Convert to fraction form
275,753.80/413,630.70 = 157,437.10/x - Step 3: Cross multiply
275,753.80x = 413,630.70 × 157,437.10 - Step 4: Simplify right side
275,753.80x = 65,120,817,878.97 - Step 5: Solve for x
x = 65,120,817,878.97/275,753.80 - Step 6: Final answer
x = 236,155.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.