Finding the Fourth Proportional to 470,272.19, 648,964.94 and 255,407.63
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Solution
The fourth proportional to 470,272.19, 648,964.94 and 255,407.63 is: 352,456.72
Step by Step Solution
- Step 1: Write the proportion equation
470,272.19 : 648,964.94 = 255,407.63 : x - Step 2: Convert to fraction form
470,272.19/648,964.94 = 255,407.63/x - Step 3: Cross multiply
470,272.19x = 648,964.94 × 255,407.63 - Step 4: Simplify right side
470,272.19x = 165,750,592,756.63 - Step 5: Solve for x
x = 165,750,592,756.63/470,272.19 - Step 6: Final answer
x = 352,456.72
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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.