Finding the Fourth Proportional to 257,901.74, 355,887.99 and 143,182.66
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Solution
The fourth proportional to 257,901.74, 355,887.99 and 143,182.66 is: 197,582.95
Step by Step Solution
- Step 1: Write the proportion equation
257,901.74 : 355,887.99 = 143,182.66 : x - Step 2: Convert to fraction form
257,901.74/355,887.99 = 143,182.66/x - Step 3: Cross multiply
257,901.74x = 355,887.99 × 143,182.66 - Step 4: Simplify right side
257,901.74x = 50,956,987,290.81 - Step 5: Solve for x
x = 50,956,987,290.81/257,901.74 - Step 6: Final answer
x = 197,582.95
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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.