Finding the Fourth Proportional to 284,588.12, 392,731.74 and 157,263.71
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Solution
The fourth proportional to 284,588.12, 392,731.74 and 157,263.71 is: 217,023.99
Step by Step Solution
- Step 1: Write the proportion equation
284,588.12 : 392,731.74 = 157,263.71 : x - Step 2: Convert to fraction form
284,588.12/392,731.74 = 157,263.71/x - Step 3: Cross multiply
284,588.12x = 392,731.74 × 157,263.71 - Step 4: Simplify right side
284,588.12x = 61,762,450,467.16 - Step 5: Solve for x
x = 61,762,450,467.16/284,588.12 - Step 6: Final answer
x = 217,023.99
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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.