Finding the Fourth Proportional to 382,055.91, 527,202.85 and 209,972.00
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Solution
The fourth proportional to 382,055.91, 527,202.85 and 209,972.00 is: 289,742.50
Step by Step Solution
- Step 1: Write the proportion equation
382,055.91 : 527,202.85 = 209,972.00 : x - Step 2: Convert to fraction form
382,055.91/527,202.85 = 209,972.00/x - Step 3: Cross multiply
382,055.91x = 527,202.85 × 209,972.00 - Step 4: Simplify right side
382,055.91x = 110,697,835,632.01 - Step 5: Solve for x
x = 110,697,835,632.01/382,055.91 - Step 6: Final answer
x = 289,742.50
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1.5x scale
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.