Finding the Fourth Proportional to 283,798.08, 391,641.12 and 156,475.80
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Solution
The fourth proportional to 283,798.08, 391,641.12 and 156,475.80 is: 215,936.48
Step by Step Solution
- Step 1: Write the proportion equation
283,798.08 : 391,641.12 = 156,475.80 : x - Step 2: Convert to fraction form
283,798.08/391,641.12 = 156,475.80/x - Step 3: Cross multiply
283,798.08x = 391,641.12 × 156,475.80 - Step 4: Simplify right side
283,798.08x = 61,282,357,564.90 - Step 5: Solve for x
x = 61,282,357,564.90/283,798.08 - Step 6: Final answer
x = 215,936.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.