Finding the Fourth Proportional to 178,491.10, 246,319.60 and 97,918.78
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Solution
The fourth proportional to 178,491.10, 246,319.60 and 97,918.78 is: 135,128.95
Step by Step Solution
- Step 1: Write the proportion equation
178,491.10 : 246,319.60 = 97,918.78 : x - Step 2: Convert to fraction form
178,491.10/246,319.60 = 97,918.78/x - Step 3: Cross multiply
178,491.10x = 246,319.60 × 97,918.78 - Step 4: Simplify right side
178,491.10x = 24,119,314,722.09 - Step 5: Solve for x
x = 24,119,314,722.09/178,491.10 - Step 6: Final answer
x = 135,128.95
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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.