Finding the Fourth Proportional to 191,201.70, 286,802.55 and 108,257.70
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Solution
The fourth proportional to 191,201.70, 286,802.55 and 108,257.70 is: 162,386.55
Step by Step Solution
- Step 1: Write the proportion equation
191,201.70 : 286,802.55 = 108,257.70 : x - Step 2: Convert to fraction form
191,201.70/286,802.55 = 108,257.70/x - Step 3: Cross multiply
191,201.70x = 286,802.55 × 108,257.70 - Step 4: Simplify right side
191,201.70x = 31,048,584,417.14 - Step 5: Solve for x
x = 31,048,584,417.14/191,201.70 - Step 6: Final answer
x = 162,386.55
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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.