Finding the Fourth Proportional to 315,139.02, 434,874.35 and 179,154.09
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Solution
The fourth proportional to 315,139.02, 434,874.35 and 179,154.09 is: 247,222.70
Step by Step Solution
- Step 1: Write the proportion equation
315,139.02 : 434,874.35 = 179,154.09 : x - Step 2: Convert to fraction form
315,139.02/434,874.35 = 179,154.09/x - Step 3: Cross multiply
315,139.02x = 434,874.35 × 179,154.09 - Step 4: Simplify right side
315,139.02x = 77,909,518,886.48 - Step 5: Solve for x
x = 77,909,518,886.48/315,139.02 - Step 6: Final answer
x = 247,222.70
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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.