Finding the Fourth Proportional to 282,800.63, 390,267.11 and 153,739.08
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Solution
The fourth proportional to 282,800.63, 390,267.11 and 153,739.08 is: 212,161.15
Step by Step Solution
- Step 1: Write the proportion equation
282,800.63 : 390,267.11 = 153,739.08 : x - Step 2: Convert to fraction form
282,800.63/390,267.11 = 153,739.08/x - Step 3: Cross multiply
282,800.63x = 390,267.11 × 153,739.08 - Step 4: Simplify right side
282,800.63x = 59,999,306,830.01 - Step 5: Solve for x
x = 59,999,306,830.01/282,800.63 - Step 6: Final answer
x = 212,161.15
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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.