Finding the Fourth Proportional to 257,750.59, 355,686.50 and 143,034.24
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Solution
The fourth proportional to 257,750.59, 355,686.50 and 143,034.24 is: 197,382.09
Step by Step Solution
- Step 1: Write the proportion equation
257,750.59 : 355,686.50 = 143,034.24 : x - Step 2: Convert to fraction form
257,750.59/355,686.50 = 143,034.24/x - Step 3: Cross multiply
257,750.59x = 355,686.50 × 143,034.24 - Step 4: Simplify right side
257,750.59x = 50,875,349,598.13 - Step 5: Solve for x
x = 50,875,349,598.13/257,750.59 - Step 6: Final answer
x = 197,382.09
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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.