Finding the Fourth Proportional to 461,188.99, 636,439.17 and 257,239.75
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Solution
The fourth proportional to 461,188.99, 636,439.17 and 257,239.75 is: 354,989.94
Step by Step Solution
- Step 1: Write the proportion equation
461,188.99 : 636,439.17 = 257,239.75 : x - Step 2: Convert to fraction form
461,188.99/636,439.17 = 257,239.75/x - Step 3: Cross multiply
461,188.99x = 636,439.17 × 257,239.75 - Step 4: Simplify right side
461,188.99x = 163,717,452,981.01 - Step 5: Solve for x
x = 163,717,452,981.01/461,188.99 - Step 6: Final answer
x = 354,989.94
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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.