Finding the Fourth Proportional to 257,529.30, 355,371.08 and 144,330.18
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Solution
The fourth proportional to 257,529.30, 355,371.08 and 144,330.18 is: 199,164.80
Step by Step Solution
- Step 1: Write the proportion equation
257,529.30 : 355,371.08 = 144,330.18 : x - Step 2: Convert to fraction form
257,529.30/355,371.08 = 144,330.18/x - Step 3: Cross multiply
257,529.30x = 355,371.08 × 144,330.18 - Step 4: Simplify right side
257,529.30x = 51,290,771,943.19 - Step 5: Solve for x
x = 51,290,771,943.19/257,529.30 - Step 6: Final answer
x = 199,164.80
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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.