Finding the Fourth Proportional to 388,970.06, 536,777.88 and 210,122.06
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Solution
The fourth proportional to 388,970.06, 536,777.88 and 210,122.06 is: 289,968.01
Step by Step Solution
- Step 1: Write the proportion equation
388,970.06 : 536,777.88 = 210,122.06 : x - Step 2: Convert to fraction form
388,970.06/536,777.88 = 210,122.06/x - Step 3: Cross multiply
388,970.06x = 536,777.88 × 210,122.06 - Step 4: Simplify right side
388,970.06x = 112,788,873,908.03 - Step 5: Solve for x
x = 112,788,873,908.03/388,970.06 - Step 6: Final answer
x = 289,968.01
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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.