Finding the Fourth Proportional to 351,675.60, 485,311.68 and 190,534.65
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Solution
The fourth proportional to 351,675.60, 485,311.68 and 190,534.65 is: 262,937.47
Step by Step Solution
- Step 1: Write the proportion equation
351,675.60 : 485,311.68 = 190,534.65 : x - Step 2: Convert to fraction form
351,675.60/485,311.68 = 190,534.65/x - Step 3: Cross multiply
351,675.60x = 485,311.68 × 190,534.65 - Step 4: Simplify right side
351,675.60x = 92,468,691,089.71 - Step 5: Solve for x
x = 92,468,691,089.71/351,675.60 - Step 6: Final answer
x = 262,937.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.