Finding the Fourth Proportional to 278,154.05, 417,121.88 and 98,201.06
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Solution
The fourth proportional to 278,154.05, 417,121.88 and 98,201.06 is: 147,263.03
Step by Step Solution
- Step 1: Write the proportion equation
278,154.05 : 417,121.88 = 98,201.06 : x - Step 2: Convert to fraction form
278,154.05/417,121.88 = 98,201.06/x - Step 3: Cross multiply
278,154.05x = 417,121.88 × 98,201.06 - Step 4: Simplify right side
278,154.05x = 40,961,808,188.58 - Step 5: Solve for x
x = 40,961,808,188.58/278,154.05 - Step 6: Final answer
x = 147,263.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.