Finding the Fourth Proportional to 188,602.92, 260,266.84 and 103,719.98
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Solution
The fourth proportional to 188,602.92, 260,266.84 and 103,719.98 is: 143,130.72
Step by Step Solution
- Step 1: Write the proportion equation
188,602.92 : 260,266.84 = 103,719.98 : x - Step 2: Convert to fraction form
188,602.92/260,266.84 = 103,719.98/x - Step 3: Cross multiply
188,602.92x = 260,266.84 × 103,719.98 - Step 4: Simplify right side
188,602.92x = 26,994,871,439.46 - Step 5: Solve for x
x = 26,994,871,439.46/188,602.92 - Step 6: Final answer
x = 143,130.72
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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.