Finding the Fourth Proportional to 280,541.70, 420,812.55 and 175,565.70
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Solution
The fourth proportional to 280,541.70, 420,812.55 and 175,565.70 is: 263,348.55
Step by Step Solution
- Step 1: Write the proportion equation
280,541.70 : 420,812.55 = 175,565.70 : x - Step 2: Convert to fraction form
280,541.70/420,812.55 = 175,565.70/x - Step 3: Cross multiply
280,541.70x = 420,812.55 × 175,565.70 - Step 4: Simplify right side
280,541.70x = 73,880,249,909.54 - Step 5: Solve for x
x = 73,880,249,909.54/280,541.70 - Step 6: Final answer
x = 263,348.55
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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.