Finding the Fourth Proportional to 163,964.20, 245,946.30 and 149,189.80
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Solution
The fourth proportional to 163,964.20, 245,946.30 and 149,189.80 is: 223,784.70
Step by Step Solution
- Step 1: Write the proportion equation
163,964.20 : 245,946.30 = 149,189.80 : x - Step 2: Convert to fraction form
163,964.20/245,946.30 = 149,189.80/x - Step 3: Cross multiply
163,964.20x = 245,946.30 × 149,189.80 - Step 4: Simplify right side
163,964.20x = 36,692,679,307.74 - Step 5: Solve for x
x = 36,692,679,307.74/163,964.20 - Step 6: Final answer
x = 223,784.70
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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.