Finding the Fourth Proportional to 288,638.30, 432,774.06 and 253,170.84
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Solution
The fourth proportional to 288,638.30, 432,774.06 and 253,170.84 is: 379,595.40
Step by Step Solution
- Step 1: Write the proportion equation
288,638.30 : 432,774.06 = 253,170.84 : x - Step 2: Convert to fraction form
288,638.30/432,774.06 = 253,170.84/x - Step 3: Cross multiply
288,638.30x = 432,774.06 × 253,170.84 - Step 4: Simplify right side
288,638.30x = 109,565,772,300.41 - Step 5: Solve for x
x = 109,565,772,300.41/288,638.30 - Step 6: Final answer
x = 379,595.40
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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.