Finding the Fourth Proportional to 475,639.17, 713,471.74 and 138,671.68
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Solution
The fourth proportional to 475,639.17, 713,471.74 and 138,671.68 is: 208,011.30
Step by Step Solution
- Step 1: Write the proportion equation
475,639.17 : 713,471.74 = 138,671.68 : x - Step 2: Convert to fraction form
475,639.17/713,471.74 = 138,671.68/x - Step 3: Cross multiply
475,639.17x = 713,471.74 × 138,671.68 - Step 4: Simplify right side
475,639.17x = 98,938,324,805.75 - Step 5: Solve for x
x = 98,938,324,805.75/475,639.17 - Step 6: Final answer
x = 208,011.30
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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.