Finding the Fourth Proportional to 351,430.19, 527,140.55 and 85,193.00
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Solution
The fourth proportional to 351,430.19, 527,140.55 and 85,193.00 is: 127,788.35
Step by Step Solution
- Step 1: Write the proportion equation
351,430.19 : 527,140.55 = 85,193.00 : x - Step 2: Convert to fraction form
351,430.19/527,140.55 = 85,193.00/x - Step 3: Cross multiply
351,430.19x = 527,140.55 × 85,193.00 - Step 4: Simplify right side
351,430.19x = 44,908,682,453.43 - Step 5: Solve for x
x = 44,908,682,453.43/351,430.19 - Step 6: Final answer
x = 127,788.35
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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.