Finding the Fourth Proportional to 355,709.13, 533,564.60 and 145,347.08
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Solution
The fourth proportional to 355,709.13, 533,564.60 and 145,347.08 is: 218,020.98
Step by Step Solution
- Step 1: Write the proportion equation
355,709.13 : 533,564.60 = 145,347.08 : x - Step 2: Convert to fraction form
355,709.13/533,564.60 = 145,347.08/x - Step 3: Cross multiply
355,709.13x = 533,564.60 × 145,347.08 - Step 4: Simplify right side
355,709.13x = 77,552,053,206.81 - Step 5: Solve for x
x = 77,552,053,206.81/355,709.13 - Step 6: Final answer
x = 218,020.98
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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.