Finding the Fourth Proportional to 176,338.17, 243,182.12 and 135,987.21
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Solution
The fourth proportional to 176,338.17, 243,182.12 and 135,987.21 is: 187,535.45
Step by Step Solution
- Step 1: Write the proportion equation
176,338.17 : 243,182.12 = 135,987.21 : x - Step 2: Convert to fraction form
176,338.17/243,182.12 = 135,987.21/x - Step 3: Cross multiply
176,338.17x = 243,182.12 × 135,987.21 - Step 4: Simplify right side
176,338.17x = 33,069,657,340.75 - Step 5: Solve for x
x = 33,069,657,340.75/176,338.17 - Step 6: Final answer
x = 187,535.45
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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.