Finding the Fourth Proportional to 382,356.50, 527,658.08 and 210,281.99
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Solution
The fourth proportional to 382,356.50, 527,658.08 and 210,281.99 is: 290,192.50
Step by Step Solution
- Step 1: Write the proportion equation
382,356.50 : 527,658.08 = 210,281.99 : x - Step 2: Convert to fraction form
382,356.50/527,658.08 = 210,281.99/x - Step 3: Cross multiply
382,356.50x = 527,658.08 × 210,281.99 - Step 4: Simplify right side
382,356.50x = 110,956,987,412.28 - Step 5: Solve for x
x = 110,956,987,412.28/382,356.50 - Step 6: Final answer
x = 290,192.50
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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.