Finding the Fourth Proportional to 387,764.10, 581,646.15 and 255,053.70
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Solution
The fourth proportional to 387,764.10, 581,646.15 and 255,053.70 is: 382,580.55
Step by Step Solution
- Step 1: Write the proportion equation
387,764.10 : 581,646.15 = 255,053.70 : x - Step 2: Convert to fraction form
387,764.10/581,646.15 = 255,053.70/x - Step 3: Cross multiply
387,764.10x = 581,646.15 × 255,053.70 - Step 4: Simplify right side
387,764.10x = 148,351,002,648.26 - Step 5: Solve for x
x = 148,351,002,648.26/387,764.10 - Step 6: Final answer
x = 382,580.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.