Finding the Fourth Proportional to 402,686.13, 555,124.82 and 266,491.92
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Solution
The fourth proportional to 402,686.13, 555,124.82 and 266,491.92 is: 367,373.66
Step by Step Solution
- Step 1: Write the proportion equation
402,686.13 : 555,124.82 = 266,491.92 : x - Step 2: Convert to fraction form
402,686.13/555,124.82 = 266,491.92/x - Step 3: Cross multiply
402,686.13x = 555,124.82 × 266,491.92 - Step 4: Simplify right side
402,686.13x = 147,936,277,789.00 - Step 5: Solve for x
x = 147,936,277,789.00/402,686.13 - Step 6: Final answer
x = 367,373.66
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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.