Finding the Fourth Proportional to 330,689.08, 455,541.06 and 239,777.92
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Solution
The fourth proportional to 330,689.08, 455,541.06 and 239,777.92 is: 330,306.30
Step by Step Solution
- Step 1: Write the proportion equation
330,689.08 : 455,541.06 = 239,777.92 : x - Step 2: Convert to fraction form
330,689.08/455,541.06 = 239,777.92/x - Step 3: Cross multiply
330,689.08x = 455,541.06 × 239,777.92 - Step 4: Simplify right side
330,689.08x = 109,228,687,841.40 - Step 5: Solve for x
x = 109,228,687,841.40/330,689.08 - Step 6: Final answer
x = 330,306.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.