Finding the Fourth Proportional to 420,766.08, 631,154.70 and 140,283.42
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Solution
The fourth proportional to 420,766.08, 631,154.70 and 140,283.42 is: 210,426.99
Step by Step Solution
- Step 1: Write the proportion equation
420,766.08 : 631,154.70 = 140,283.42 : x - Step 2: Convert to fraction form
420,766.08/631,154.70 = 140,283.42/x - Step 3: Cross multiply
420,766.08x = 631,154.70 × 140,283.42 - Step 4: Simplify right side
420,766.08x = 88,540,539,865.07 - Step 5: Solve for x
x = 88,540,539,865.07/420,766.08 - Step 6: Final answer
x = 210,426.99
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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.