Finding the Fourth Proportional to 178,985.68, 247,000.28 and 98,418.65
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Solution
The fourth proportional to 178,985.68, 247,000.28 and 98,418.65 is: 135,817.76
Step by Step Solution
- Step 1: Write the proportion equation
178,985.68 : 247,000.28 = 98,418.65 : x - Step 2: Convert to fraction form
178,985.68/247,000.28 = 98,418.65/x - Step 3: Cross multiply
178,985.68x = 247,000.28 × 98,418.65 - Step 4: Simplify right side
178,985.68x = 24,309,434,107.22 - Step 5: Solve for x
x = 24,309,434,107.22/178,985.68 - Step 6: Final answer
x = 135,817.76
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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.