Finding the Fourth Proportional to 257,418.56, 355,237.28 and 144,242.08
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Solution
The fourth proportional to 257,418.56, 355,237.28 and 144,242.08 is: 199,053.88
Step by Step Solution
- Step 1: Write the proportion equation
257,418.56 : 355,237.28 = 144,242.08 : x - Step 2: Convert to fraction form
257,418.56/355,237.28 = 144,242.08/x - Step 3: Cross multiply
257,418.56x = 355,237.28 × 144,242.08 - Step 4: Simplify right side
257,418.56x = 51,240,164,160.74 - Step 5: Solve for x
x = 51,240,164,160.74/257,418.56 - Step 6: Final answer
x = 199,053.88
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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.