Finding the Fourth Proportional to 152,221.80, 228,332.70 and 69,115.80
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Solution
The fourth proportional to 152,221.80, 228,332.70 and 69,115.80 is: 103,673.70
Step by Step Solution
- Step 1: Write the proportion equation
152,221.80 : 228,332.70 = 69,115.80 : x - Step 2: Convert to fraction form
152,221.80/228,332.70 = 69,115.80/x - Step 3: Cross multiply
152,221.80x = 228,332.70 × 69,115.80 - Step 4: Simplify right side
152,221.80x = 15,781,397,226.66 - Step 5: Solve for x
x = 15,781,397,226.66/152,221.80 - Step 6: Final answer
x = 103,673.70
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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.