Finding the Fourth Proportional to 286,152.47, 394,890.66 and 171,497.71
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Solution
The fourth proportional to 286,152.47, 394,890.66 and 171,497.71 is: 236,666.99
Step by Step Solution
- Step 1: Write the proportion equation
286,152.47 : 394,890.66 = 171,497.71 : x - Step 2: Convert to fraction form
286,152.47/394,890.66 = 171,497.71/x - Step 3: Cross multiply
286,152.47x = 394,890.66 × 171,497.71 - Step 4: Simplify right side
286,152.47x = 67,722,843,890.39 - Step 5: Solve for x
x = 67,722,843,890.39/286,152.47 - Step 6: Final answer
x = 236,666.99
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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.