Finding the Fourth Proportional to 288,671.05, 432,898.86 and 99,077.62
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Solution
The fourth proportional to 288,671.05, 432,898.86 and 99,077.62 is: 148,579.46
Step by Step Solution
- Step 1: Write the proportion equation
288,671.05 : 432,898.86 = 99,077.62 : x - Step 2: Convert to fraction form
288,671.05/432,898.86 = 99,077.62/x - Step 3: Cross multiply
288,671.05x = 432,898.86 × 99,077.62 - Step 4: Simplify right side
288,671.05x = 42,890,586,585.02 - Step 5: Solve for x
x = 42,890,586,585.02/288,671.05 - Step 6: Final answer
x = 148,579.46
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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.