Finding the Fourth Proportional to 283,123.30, 390,726.99 and 162,272.35
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Solution
The fourth proportional to 283,123.30, 390,726.99 and 162,272.35 is: 223,945.50
Step by Step Solution
- Step 1: Write the proportion equation
283,123.30 : 390,726.99 = 162,272.35 : x - Step 2: Convert to fraction form
283,123.30/390,726.99 = 162,272.35/x - Step 3: Cross multiply
283,123.30x = 390,726.99 × 162,272.35 - Step 4: Simplify right side
283,123.30x = 63,404,187,280.80 - Step 5: Solve for x
x = 63,404,187,280.80/283,123.30 - Step 6: Final answer
x = 223,945.50
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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.