Finding the Fourth Proportional to 168,628.79, 252,937.35 and 42,270.14
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Solution
The fourth proportional to 168,628.79, 252,937.35 and 42,270.14 is: 63,403.75
Step by Step Solution
- Step 1: Write the proportion equation
168,628.79 : 252,937.35 = 42,270.14 : x - Step 2: Convert to fraction form
168,628.79/252,937.35 = 42,270.14/x - Step 3: Cross multiply
168,628.79x = 252,937.35 × 42,270.14 - Step 4: Simplify right side
168,628.79x = 10,691,697,828.07 - Step 5: Solve for x
x = 10,691,697,828.07/168,628.79 - Step 6: Final answer
x = 63,403.75
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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.