Finding the Fourth Proportional to 355,506.10, 533,259.15 and 261,027.70
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Solution
The fourth proportional to 355,506.10, 533,259.15 and 261,027.70 is: 391,541.55
Step by Step Solution
- Step 1: Write the proportion equation
355,506.10 : 533,259.15 = 261,027.70 : x - Step 2: Convert to fraction form
355,506.10/533,259.15 = 261,027.70/x - Step 3: Cross multiply
355,506.10x = 533,259.15 × 261,027.70 - Step 4: Simplify right side
355,506.10x = 139,195,409,428.46 - Step 5: Solve for x
x = 139,195,409,428.46/355,506.10 - Step 6: Final answer
x = 391,541.55
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1.5x scale
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.