Finding the Fourth Proportional to 283,053.96, 390,614.45 and 155,726.82
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Solution
The fourth proportional to 283,053.96, 390,614.45 and 155,726.82 is: 214,903.00
Step by Step Solution
- Step 1: Write the proportion equation
283,053.96 : 390,614.45 = 155,726.82 : x - Step 2: Convert to fraction form
283,053.96/390,614.45 = 155,726.82/x - Step 3: Cross multiply
283,053.96x = 390,614.45 × 155,726.82 - Step 4: Simplify right side
283,053.96x = 60,829,145,365.91 - Step 5: Solve for x
x = 60,829,145,365.91/283,053.96 - Step 6: Final answer
x = 214,903.00
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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.