Finding the Fourth Proportional to 306,722.70, 423,281.70 and 170,762.58
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Solution
The fourth proportional to 306,722.70, 423,281.70 and 170,762.58 is: 235,654.80
Step by Step Solution
- Step 1: Write the proportion equation
306,722.70 : 423,281.70 = 170,762.58 : x - Step 2: Convert to fraction form
306,722.70/423,281.70 = 170,762.58/x - Step 3: Cross multiply
306,722.70x = 423,281.70 × 170,762.58 - Step 4: Simplify right side
306,722.70x = 72,280,675,158.79 - Step 5: Solve for x
x = 72,280,675,158.79/306,722.70 - Step 6: Final answer
x = 235,654.80
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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.