Finding the Fourth Proportional to 221,013.60, 304,988.16 and 125,507.68
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Solution
The fourth proportional to 221,013.60, 304,988.16 and 125,507.68 is: 173,194.57
Step by Step Solution
- Step 1: Write the proportion equation
221,013.60 : 304,988.16 = 125,507.68 : x - Step 2: Convert to fraction form
221,013.60/304,988.16 = 125,507.68/x - Step 3: Cross multiply
221,013.60x = 304,988.16 × 125,507.68 - Step 4: Simplify right side
221,013.60x = 38,278,356,389.07 - Step 5: Solve for x
x = 38,278,356,389.07/221,013.60 - Step 6: Final answer
x = 173,194.57
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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.