Finding the Fourth Proportional to 282,773.16, 390,228.30 and 155,457.09
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Solution
The fourth proportional to 282,773.16, 390,228.30 and 155,457.09 is: 214,531.52
Step by Step Solution
- Step 1: Write the proportion equation
282,773.16 : 390,228.30 = 155,457.09 : x - Step 2: Convert to fraction form
282,773.16/390,228.30 = 155,457.09/x - Step 3: Cross multiply
282,773.16x = 390,228.30 × 155,457.09 - Step 4: Simplify right side
282,773.16x = 60,663,755,953.65 - Step 5: Solve for x
x = 60,663,755,953.65/282,773.16 - Step 6: Final answer
x = 214,531.52
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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.