Finding the Fourth Proportional to 257,845.02, 355,828.86 and 143,125.80
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Solution
The fourth proportional to 257,845.02, 355,828.86 and 143,125.80 is: 197,515.12
Step by Step Solution
- Step 1: Write the proportion equation
257,845.02 : 355,828.86 = 143,125.80 : x - Step 2: Convert to fraction form
257,845.02/355,828.86 = 143,125.80/x - Step 3: Cross multiply
257,845.02x = 355,828.86 × 143,125.80 - Step 4: Simplify right side
257,845.02x = 50,928,290,250.59 - Step 5: Solve for x
x = 50,928,290,250.59/257,845.02 - Step 6: Final answer
x = 197,515.12
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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.