Finding the Fourth Proportional to 153,297.98, 211,551.18 and 86,229.98
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Solution
The fourth proportional to 153,297.98, 211,551.18 and 86,229.98 is: 118,997.35
Step by Step Solution
- Step 1: Write the proportion equation
153,297.98 : 211,551.18 = 86,229.98 : x - Step 2: Convert to fraction form
153,297.98/211,551.18 = 86,229.98/x - Step 3: Cross multiply
153,297.98x = 211,551.18 × 86,229.98 - Step 4: Simplify right side
153,297.98x = 18,242,054,020.38 - Step 5: Solve for x
x = 18,242,054,020.38/153,297.98 - Step 6: Final answer
x = 118,997.35
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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.