Finding the Fourth Proportional to 288,412.80, 432,230.40 and 193,372.80
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Solution
The fourth proportional to 288,412.80, 432,230.40 and 193,372.80 is: 289,798.52
Step by Step Solution
- Step 1: Write the proportion equation
288,412.80 : 432,230.40 = 193,372.80 : x - Step 2: Convert to fraction form
288,412.80/432,230.40 = 193,372.80/x - Step 3: Cross multiply
288,412.80x = 432,230.40 × 193,372.80 - Step 4: Simplify right side
288,412.80x = 83,581,602,693.12 - Step 5: Solve for x
x = 83,581,602,693.12/288,412.80 - Step 6: Final answer
x = 289,798.52
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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.