Finding the Fourth Proportional to 445,506.99, 668,249.46 and 129,966.63
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Solution
The fourth proportional to 445,506.99, 668,249.46 and 129,966.63 is: 194,946.73
Step by Step Solution
- Step 1: Write the proportion equation
445,506.99 : 668,249.46 = 129,966.63 : x - Step 2: Convert to fraction form
445,506.99/668,249.46 = 129,966.63/x - Step 3: Cross multiply
445,506.99x = 668,249.46 × 129,966.63 - Step 4: Simplify right side
445,506.99x = 86,850,130,315.52 - Step 5: Solve for x
x = 86,850,130,315.52/445,506.99 - Step 6: Final answer
x = 194,946.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.