Finding the Fourth Proportional to 282,053.64, 388,898.10 and 258,259.08
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Solution
The fourth proportional to 282,053.64, 388,898.10 and 258,259.08 is: 356,089.95
Step by Step Solution
- Step 1: Write the proportion equation
282,053.64 : 388,898.10 = 258,259.08 : x - Step 2: Convert to fraction form
282,053.64/388,898.10 = 258,259.08/x - Step 3: Cross multiply
282,053.64x = 388,898.10 × 258,259.08 - Step 4: Simplify right side
282,053.64x = 100,436,465,519.75 - Step 5: Solve for x
x = 100,436,465,519.75/282,053.64 - Step 6: Final answer
x = 356,089.95
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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.