Finding the Fourth Proportional to 257,698.08, 355,622.67 and 144,523.26
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Solution
The fourth proportional to 257,698.08, 355,622.67 and 144,523.26 is: 199,441.72
Step by Step Solution
- Step 1: Write the proportion equation
257,698.08 : 355,622.67 = 144,523.26 : x - Step 2: Convert to fraction form
257,698.08/355,622.67 = 144,523.26/x - Step 3: Cross multiply
257,698.08x = 355,622.67 × 144,523.26 - Step 4: Simplify right side
257,698.08x = 51,395,747,598.30 - Step 5: Solve for x
x = 51,395,747,598.30/257,698.08 - Step 6: Final answer
x = 199,441.72
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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.