Finding the Fourth Proportional to 388,426.56, 536,029.52 and 216,343.12
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Solution
The fourth proportional to 388,426.56, 536,029.52 and 216,343.12 is: 298,553.99
Step by Step Solution
- Step 1: Write the proportion equation
388,426.56 : 536,029.52 = 216,343.12 : x - Step 2: Convert to fraction form
388,426.56/536,029.52 = 216,343.12/x - Step 3: Cross multiply
388,426.56x = 536,029.52 × 216,343.12 - Step 4: Simplify right side
388,426.56x = 115,966,298,768.90 - Step 5: Solve for x
x = 115,966,298,768.90/388,426.56 - Step 6: Final answer
x = 298,553.99
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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.