Finding the Fourth Proportional to 178,962.10, 246,967.85 and 98,390.99
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Solution
The fourth proportional to 178,962.10, 246,967.85 and 98,390.99 is: 135,779.66
Step by Step Solution
- Step 1: Write the proportion equation
178,962.10 : 246,967.85 = 98,390.99 : x - Step 2: Convert to fraction form
178,962.10/246,967.85 = 98,390.99/x - Step 3: Cross multiply
178,962.10x = 246,967.85 × 98,390.99 - Step 4: Simplify right side
178,962.10x = 24,299,412,123.07 - Step 5: Solve for x
x = 24,299,412,123.07/178,962.10 - Step 6: Final answer
x = 135,779.66
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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.