Finding the Fourth Proportional to 150,828.29, 208,157.49 and 86,284.71
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Solution
The fourth proportional to 150,828.29, 208,157.49 and 86,284.71 is: 119,081.17
Step by Step Solution
- Step 1: Write the proportion equation
150,828.29 : 208,157.49 = 86,284.71 : x - Step 2: Convert to fraction form
150,828.29/208,157.49 = 86,284.71/x - Step 3: Cross multiply
150,828.29x = 208,157.49 × 86,284.71 - Step 4: Simplify right side
150,828.29x = 17,960,808,658.98 - Step 5: Solve for x
x = 17,960,808,658.98/150,828.29 - Step 6: Final answer
x = 119,081.17
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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.