Finding the Fourth Proportional to 272,023.70, 408,424.35 and 153,925.70
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Solution
The fourth proportional to 272,023.70, 408,424.35 and 153,925.70 is: 231,108.55
Step by Step Solution
- Step 1: Write the proportion equation
272,023.70 : 408,424.35 = 153,925.70 : x - Step 2: Convert to fraction form
272,023.70/408,424.35 = 153,925.70/x - Step 3: Cross multiply
272,023.70x = 408,424.35 × 153,925.70 - Step 4: Simplify right side
272,023.70x = 62,867,003,970.80 - Step 5: Solve for x
x = 62,867,003,970.80/272,023.70 - Step 6: Final answer
x = 231,108.55
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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.