Finding the Fourth Proportional to 461,187.99, 636,437.79 and 257,238.75
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Solution
The fourth proportional to 461,187.99, 636,437.79 and 257,238.75 is: 354,988.56
Step by Step Solution
- Step 1: Write the proportion equation
461,187.99 : 636,437.79 = 257,238.75 : x - Step 2: Convert to fraction form
461,187.99/636,437.79 = 257,238.75/x - Step 3: Cross multiply
461,187.99x = 636,437.79 × 257,238.75 - Step 4: Simplify right side
461,187.99x = 163,716,461,552.36 - Step 5: Solve for x
x = 163,716,461,552.36/461,187.99 - Step 6: Final answer
x = 354,988.56
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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.