Finding the Fourth Proportional to 145,325.30, 200,646.70 and 129,964.18
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Solution
The fourth proportional to 145,325.30, 200,646.70 and 129,964.18 is: 179,438.02
Step by Step Solution
- Step 1: Write the proportion equation
145,325.30 : 200,646.70 = 129,964.18 : x - Step 2: Convert to fraction form
145,325.30/200,646.70 = 129,964.18/x - Step 3: Cross multiply
145,325.30x = 200,646.70 × 129,964.18 - Step 4: Simplify right side
145,325.30x = 26,076,883,835.21 - Step 5: Solve for x
x = 26,076,883,835.21/145,325.30 - Step 6: Final answer
x = 179,438.02
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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.