Finding the Fourth Proportional to 155,719.28, 214,774.98 and 134,246.18
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Solution
The fourth proportional to 155,719.28, 214,774.98 and 134,246.18 is: 185,158.32
Step by Step Solution
- Step 1: Write the proportion equation
155,719.28 : 214,774.98 = 134,246.18 : x - Step 2: Convert to fraction form
155,719.28/214,774.98 = 134,246.18/x - Step 3: Cross multiply
155,719.28x = 214,774.98 × 134,246.18 - Step 4: Simplify right side
155,719.28x = 28,832,719,550.70 - Step 5: Solve for x
x = 28,832,719,550.70/155,719.28 - Step 6: Final answer
x = 185,158.32
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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.