Finding the Fourth Proportional to 223,209.48, 308,031.36 and 121,235.94
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Solution
The fourth proportional to 223,209.48, 308,031.36 and 121,235.94 is: 167,306.83
Step by Step Solution
- Step 1: Write the proportion equation
223,209.48 : 308,031.36 = 121,235.94 : x - Step 2: Convert to fraction form
223,209.48/308,031.36 = 121,235.94/x - Step 3: Cross multiply
223,209.48x = 308,031.36 × 121,235.94 - Step 4: Simplify right side
223,209.48x = 37,344,471,479.08 - Step 5: Solve for x
x = 37,344,471,479.08/223,209.48 - Step 6: Final answer
x = 167,306.83
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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.