Finding the Fourth Proportional to 312,271.84, 430,985.68 and 191,479.84
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Solution
The fourth proportional to 312,271.84, 430,985.68 and 191,479.84 is: 264,273.17
Step by Step Solution
- Step 1: Write the proportion equation
312,271.84 : 430,985.68 = 191,479.84 : x - Step 2: Convert to fraction form
312,271.84/430,985.68 = 191,479.84/x - Step 3: Cross multiply
312,271.84x = 430,985.68 × 191,479.84 - Step 4: Simplify right side
312,271.84x = 82,525,069,048.69 - Step 5: Solve for x
x = 82,525,069,048.69/312,271.84 - Step 6: Final answer
x = 264,273.17
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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.