Finding the Fourth Proportional to 472,211.65, 651,633.06 and 257,347.09
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Solution
The fourth proportional to 472,211.65, 651,633.06 and 257,347.09 is: 355,128.62
Step by Step Solution
- Step 1: Write the proportion equation
472,211.65 : 651,633.06 = 257,347.09 : x - Step 2: Convert to fraction form
472,211.65/651,633.06 = 257,347.09/x - Step 3: Cross multiply
472,211.65x = 651,633.06 × 257,347.09 - Step 4: Simplify right side
472,211.65x = 167,695,871,738.80 - Step 5: Solve for x
x = 167,695,871,738.80/472,211.65 - Step 6: Final answer
x = 355,128.62
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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.