Finding the Fourth Proportional to 461,189.99, 636,440.55 and 257,240.75
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Solution
The fourth proportional to 461,189.99, 636,440.55 and 257,240.75 is: 354,991.32
Step by Step Solution
- Step 1: Write the proportion equation
461,189.99 : 636,440.55 = 257,240.75 : x - Step 2: Convert to fraction form
461,189.99/636,440.55 = 257,240.75/x - Step 3: Cross multiply
461,189.99x = 636,440.55 × 257,240.75 - Step 4: Simplify right side
461,189.99x = 163,718,444,412.41 - Step 5: Solve for x
x = 163,718,444,412.41/461,189.99 - Step 6: Final answer
x = 354,991.32
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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.