Finding the Fourth Proportional to 284,901.77, 393,138.02 and 157,574.63
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Solution
The fourth proportional to 284,901.77, 393,138.02 and 157,574.63 is: 217,438.38
Step by Step Solution
- Step 1: Write the proportion equation
284,901.77 : 393,138.02 = 157,574.63 : x - Step 2: Convert to fraction form
284,901.77/393,138.02 = 157,574.63/x - Step 3: Cross multiply
284,901.77x = 393,138.02 × 157,574.63 - Step 4: Simplify right side
284,901.77x = 61,948,579,417.21 - Step 5: Solve for x
x = 61,948,579,417.21/284,901.77 - Step 6: Final answer
x = 217,438.38
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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.