Finding the Fourth Proportional to 426,854.24, 640,281.36 and 146,373.92
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Solution
The fourth proportional to 426,854.24, 640,281.36 and 146,373.92 is: 219,560.88
Step by Step Solution
- Step 1: Write the proportion equation
426,854.24 : 640,281.36 = 146,373.92 : x - Step 2: Convert to fraction form
426,854.24/640,281.36 = 146,373.92/x - Step 3: Cross multiply
426,854.24x = 640,281.36 × 146,373.92 - Step 4: Simplify right side
426,854.24x = 93,720,492,566.13 - Step 5: Solve for x
x = 93,720,492,566.13/426,854.24 - Step 6: Final answer
x = 219,560.88
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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.