Finding the Fourth Proportional to 439,913.87, 659,862.70 and 140,392.07
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Solution
The fourth proportional to 439,913.87, 659,862.70 and 140,392.07 is: 210,585.52
Step by Step Solution
- Step 1: Write the proportion equation
439,913.87 : 659,862.70 = 140,392.07 : x - Step 2: Convert to fraction form
439,913.87/659,862.70 = 140,392.07/x - Step 3: Cross multiply
439,913.87x = 659,862.70 × 140,392.07 - Step 4: Simplify right side
439,913.87x = 92,639,490,368.79 - Step 5: Solve for x
x = 92,639,490,368.79/439,913.87 - Step 6: Final answer
x = 210,585.52
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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.