Finding the Fourth Proportional to 186,312.47, 257,115.80 and 101,434.19
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Solution
The fourth proportional to 186,312.47, 257,115.80 and 101,434.19 is: 139,981.68
Step by Step Solution
- Step 1: Write the proportion equation
186,312.47 : 257,115.80 = 101,434.19 : x - Step 2: Convert to fraction form
186,312.47/257,115.80 = 101,434.19/x - Step 3: Cross multiply
186,312.47x = 257,115.80 × 101,434.19 - Step 4: Simplify right side
186,312.47x = 26,080,331,877.21 - Step 5: Solve for x
x = 26,080,331,877.21/186,312.47 - Step 6: Final answer
x = 139,981.68
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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.