Finding the Fourth Proportional to 554,943.81, 832,416.12 and 134,220.09
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Solution
The fourth proportional to 554,943.81, 832,416.12 and 134,220.09 is: 201,330.23
Step by Step Solution
- Step 1: Write the proportion equation
554,943.81 : 832,416.12 = 134,220.09 : x - Step 2: Convert to fraction form
554,943.81/832,416.12 = 134,220.09/x - Step 3: Cross multiply
554,943.81x = 832,416.12 × 134,220.09 - Step 4: Simplify right side
554,943.81x = 111,726,966,543.85 - Step 5: Solve for x
x = 111,726,966,543.85/554,943.81 - Step 6: Final answer
x = 201,330.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.