Finding the Fourth Proportional to 306,723.70, 423,283.08 and 170,763.58
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Solution
The fourth proportional to 306,723.70, 423,283.08 and 170,763.58 is: 235,656.18
Step by Step Solution
- Step 1: Write the proportion equation
306,723.70 : 423,283.08 = 170,763.58 : x - Step 2: Convert to fraction form
306,723.70/423,283.08 = 170,763.58/x - Step 3: Cross multiply
306,723.70x = 423,283.08 × 170,763.58 - Step 4: Simplify right side
306,723.70x = 72,281,334,094.23 - Step 5: Solve for x
x = 72,281,334,094.23/306,723.70 - Step 6: Final answer
x = 235,656.18
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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.