Finding the Fourth Proportional to 353,631.98, 530,448.41 and 87,388.43
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Solution
The fourth proportional to 353,631.98, 530,448.41 and 87,388.43 is: 131,082.75
Step by Step Solution
- Step 1: Write the proportion equation
353,631.98 : 530,448.41 = 87,388.43 : x - Step 2: Convert to fraction form
353,631.98/530,448.41 = 87,388.43/x - Step 3: Cross multiply
353,631.98x = 530,448.41 × 87,388.43 - Step 4: Simplify right side
353,631.98x = 46,355,051,312.13 - Step 5: Solve for x
x = 46,355,051,312.13/353,631.98 - Step 6: Final answer
x = 131,082.75
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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.