Finding the Fourth Proportional to 282,779.08, 390,242.58 and 155,457.88
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Solution
The fourth proportional to 282,779.08, 390,242.58 and 155,457.88 is: 214,535.97
Step by Step Solution
- Step 1: Write the proportion equation
282,779.08 : 390,242.58 = 155,457.88 : x - Step 2: Convert to fraction form
282,779.08/390,242.58 = 155,457.88/x - Step 3: Cross multiply
282,779.08x = 390,242.58 × 155,457.88 - Step 4: Simplify right side
282,779.08x = 60,666,284,172.53 - Step 5: Solve for x
x = 60,666,284,172.53/282,779.08 - Step 6: Final answer
x = 214,535.97
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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.