Finding the Fourth Proportional to 288,045.80, 432,068.70 and 163,629.80
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Solution
The fourth proportional to 288,045.80, 432,068.70 and 163,629.80 is: 245,444.70
Step by Step Solution
- Step 1: Write the proportion equation
288,045.80 : 432,068.70 = 163,629.80 : x - Step 2: Convert to fraction form
288,045.80/432,068.70 = 163,629.80/x - Step 3: Cross multiply
288,045.80x = 432,068.70 × 163,629.80 - Step 4: Simplify right side
288,045.80x = 70,699,314,967.26 - Step 5: Solve for x
x = 70,699,314,967.26/288,045.80 - Step 6: Final answer
x = 245,444.70
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1.5x scale
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.