Finding the Fourth Proportional to 257,257.26, 355,027.68 and 155,281.10
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Solution
The fourth proportional to 257,257.26, 355,027.68 and 155,281.10 is: 214,295.55
Step by Step Solution
- Step 1: Write the proportion equation
257,257.26 : 355,027.68 = 155,281.10 : x - Step 2: Convert to fraction form
257,257.26/355,027.68 = 155,281.10/x - Step 3: Cross multiply
257,257.26x = 355,027.68 × 155,281.10 - Step 4: Simplify right side
257,257.26x = 55,129,086,905.71 - Step 5: Solve for x
x = 55,129,086,905.71/257,257.26 - Step 6: Final answer
x = 214,295.55
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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.