Finding the Fourth Proportional to 257,850.87, 355,840.34 and 144,681.99
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Solution
The fourth proportional to 257,850.87, 355,840.34 and 144,681.99 is: 199,664.59
Step by Step Solution
- Step 1: Write the proportion equation
257,850.87 : 355,840.34 = 144,681.99 : x - Step 2: Convert to fraction form
257,850.87/355,840.34 = 144,681.99/x - Step 3: Cross multiply
257,850.87x = 355,840.34 × 144,681.99 - Step 4: Simplify right side
257,850.87x = 51,483,687,790.07 - Step 5: Solve for x
x = 51,483,687,790.07/257,850.87 - Step 6: Final answer
x = 199,664.59
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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.