Finding the Fourth Proportional to 282,930.26, 390,447.02 and 155,607.98
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Solution
The fourth proportional to 282,930.26, 390,447.02 and 155,607.98 is: 214,740.80
Step by Step Solution
- Step 1: Write the proportion equation
282,930.26 : 390,447.02 = 155,607.98 : x - Step 2: Convert to fraction form
282,930.26/390,447.02 = 155,607.98/x - Step 3: Cross multiply
282,930.26x = 390,447.02 × 155,607.98 - Step 4: Simplify right side
282,930.26x = 60,756,671,301.18 - Step 5: Solve for x
x = 60,756,671,301.18/282,930.26 - Step 6: Final answer
x = 214,740.80
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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.