Finding the Fourth Proportional to 210,963.53, 291,130.02 and 115,476.28
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Solution
The fourth proportional to 210,963.53, 291,130.02 and 115,476.28 is: 159,357.45
Step by Step Solution
- Step 1: Write the proportion equation
210,963.53 : 291,130.02 = 115,476.28 : x - Step 2: Convert to fraction form
210,963.53/291,130.02 = 115,476.28/x - Step 3: Cross multiply
210,963.53x = 291,130.02 × 115,476.28 - Step 4: Simplify right side
210,963.53x = 33,618,610,250.28 - Step 5: Solve for x
x = 33,618,610,250.28/210,963.53 - Step 6: Final answer
x = 159,357.45
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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.