Finding the Fourth Proportional to 288,495.95, 432,743.99 and 78,133.95
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Solution
The fourth proportional to 288,495.95, 432,743.99 and 78,133.95 is: 117,200.94
Step by Step Solution
- Step 1: Write the proportion equation
288,495.95 : 432,743.99 = 78,133.95 : x - Step 2: Convert to fraction form
288,495.95/432,743.99 = 78,133.95/x - Step 3: Cross multiply
288,495.95x = 432,743.99 × 78,133.95 - Step 4: Simplify right side
288,495.95x = 33,811,996,886.79 - Step 5: Solve for x
x = 33,811,996,886.79/288,495.95 - Step 6: Final answer
x = 117,200.94
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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.