Finding the Fourth Proportional to 457,356.49, 686,101.16 and 141,838.81
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Solution
The fourth proportional to 457,356.49, 686,101.16 and 141,838.81 is: 212,778.82
Step by Step Solution
- Step 1: Write the proportion equation
457,356.49 : 686,101.16 = 141,838.81 : x - Step 2: Convert to fraction form
457,356.49/686,101.16 = 141,838.81/x - Step 3: Cross multiply
457,356.49x = 686,101.16 × 141,838.81 - Step 4: Simplify right side
457,356.49x = 97,315,772,074.02 - Step 5: Solve for x
x = 97,315,772,074.02/457,356.49 - Step 6: Final answer
x = 212,778.82
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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.