Finding the Fourth Proportional to 229,371.99, 316,533.35 and 128,769.99
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Solution
The fourth proportional to 229,371.99, 316,533.35 and 128,769.99 is: 177,702.59
Step by Step Solution
- Step 1: Write the proportion equation
229,371.99 : 316,533.35 = 128,769.99 : x - Step 2: Convert to fraction form
229,371.99/316,533.35 = 128,769.99/x - Step 3: Cross multiply
229,371.99x = 316,533.35 × 128,769.99 - Step 4: Simplify right side
229,371.99x = 40,759,995,670.32 - Step 5: Solve for x
x = 40,759,995,670.32/229,371.99 - Step 6: Final answer
x = 177,702.59
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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.