Finding the Fourth Proportional to 329,203.64, 493,681.53 and 129,414.81
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Solution
The fourth proportional to 329,203.64, 493,681.53 and 129,414.81 is: 194,073.50
Step by Step Solution
- Step 1: Write the proportion equation
329,203.64 : 493,681.53 = 129,414.81 : x - Step 2: Convert to fraction form
329,203.64/493,681.53 = 129,414.81/x - Step 3: Cross multiply
329,203.64x = 493,681.53 × 129,414.81 - Step 4: Simplify right side
329,203.64x = 63,889,703,742.07 - Step 5: Solve for x
x = 63,889,703,742.07/329,203.64 - Step 6: Final answer
x = 194,073.50
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1.5x scale
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.