Finding the Fourth Proportional to 210,880.08, 316,321.34 and 86,221.08
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Solution
The fourth proportional to 210,880.08, 316,321.34 and 86,221.08 is: 129,332.12
Step by Step Solution
- Step 1: Write the proportion equation
210,880.08 : 316,321.34 = 86,221.08 : x - Step 2: Convert to fraction form
210,880.08/316,321.34 = 86,221.08/x - Step 3: Cross multiply
210,880.08x = 316,321.34 × 86,221.08 - Step 4: Simplify right side
210,880.08x = 27,273,567,130.74 - Step 5: Solve for x
x = 27,273,567,130.74/210,880.08 - Step 6: Final answer
x = 129,332.12
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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.