Finding the Fourth Proportional to 473,135.20, 709,702.80 and 140,711.20
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Solution
The fourth proportional to 473,135.20, 709,702.80 and 140,711.20 is: 211,066.80
Step by Step Solution
- Step 1: Write the proportion equation
473,135.20 : 709,702.80 = 140,711.20 : x - Step 2: Convert to fraction form
473,135.20/709,702.80 = 140,711.20/x - Step 3: Cross multiply
473,135.20x = 709,702.80 × 140,711.20 - Step 4: Simplify right side
473,135.20x = 99,863,132,631.36 - Step 5: Solve for x
x = 99,863,132,631.36/473,135.20 - Step 6: Final answer
x = 211,066.80
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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.