Finding the Fourth Proportional to 357,138.58, 535,690.51 and 132,542.76
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Solution
The fourth proportional to 357,138.58, 535,690.51 and 132,542.76 is: 198,807.70
Step by Step Solution
- Step 1: Write the proportion equation
357,138.58 : 535,690.51 = 132,542.76 : x - Step 2: Convert to fraction form
357,138.58/535,690.51 = 132,542.76/x - Step 3: Cross multiply
357,138.58x = 535,690.51 × 132,542.76 - Step 4: Simplify right side
357,138.58x = 71,001,898,701.21 - Step 5: Solve for x
x = 71,001,898,701.21/357,138.58 - Step 6: Final answer
x = 198,807.70
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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.