Finding the Fourth Proportional to 260,025.70, 390,038.55 and 207,537.70
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Solution
The fourth proportional to 260,025.70, 390,038.55 and 207,537.70 is: 311,306.55
Step by Step Solution
- Step 1: Write the proportion equation
260,025.70 : 390,038.55 = 207,537.70 : x - Step 2: Convert to fraction form
260,025.70/390,038.55 = 207,537.70/x - Step 3: Cross multiply
260,025.70x = 390,038.55 × 207,537.70 - Step 4: Simplify right side
260,025.70x = 80,947,703,578.34 - Step 5: Solve for x
x = 80,947,703,578.34/260,025.70 - Step 6: Final answer
x = 311,306.55
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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.