Finding the Fourth Proportional to 207,423.12, 286,239.18 and 115,541.76
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Solution
The fourth proportional to 207,423.12, 286,239.18 and 115,541.76 is: 159,445.00
Step by Step Solution
- Step 1: Write the proportion equation
207,423.12 : 286,239.18 = 115,541.76 : x - Step 2: Convert to fraction form
207,423.12/286,239.18 = 115,541.76/x - Step 3: Cross multiply
207,423.12x = 286,239.18 × 115,541.76 - Step 4: Simplify right side
207,423.12x = 33,072,578,638.16 - Step 5: Solve for x
x = 33,072,578,638.16/207,423.12 - Step 6: Final answer
x = 159,445.00
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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.