Finding the Fourth Proportional to 356,829.76, 534,778.08 and 146,221.12
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Solution
The fourth proportional to 356,829.76, 534,778.08 and 146,221.12 is: 219,140.49
Step by Step Solution
- Step 1: Write the proportion equation
356,829.76 : 534,778.08 = 146,221.12 : x - Step 2: Convert to fraction form
356,829.76/534,778.08 = 146,221.12/x - Step 3: Cross multiply
356,829.76x = 534,778.08 × 146,221.12 - Step 4: Simplify right side
356,829.76x = 78,195,849,809.05 - Step 5: Solve for x
x = 78,195,849,809.05/356,829.76 - Step 6: Final answer
x = 219,140.49
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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.