Finding the Fourth Proportional to 283,297.76, 390,943.83 and 160,813.01
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Solution
The fourth proportional to 283,297.76, 390,943.83 and 160,813.01 is: 221,917.94
Step by Step Solution
- Step 1: Write the proportion equation
283,297.76 : 390,943.83 = 160,813.01 : x - Step 2: Convert to fraction form
283,297.76/390,943.83 = 160,813.01/x - Step 3: Cross multiply
283,297.76x = 390,943.83 × 160,813.01 - Step 4: Simplify right side
283,297.76x = 62,868,854,043.23 - Step 5: Solve for x
x = 62,868,854,043.23/283,297.76 - Step 6: Final answer
x = 221,917.94
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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.