Finding the Fourth Proportional to 282,889.64, 390,398.12 and 155,577.08
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Solution
The fourth proportional to 282,889.64, 390,398.12 and 155,577.08 is: 214,702.09
Step by Step Solution
- Step 1: Write the proportion equation
282,889.64 : 390,398.12 = 155,577.08 : x - Step 2: Convert to fraction form
282,889.64/390,398.12 = 155,577.08/x - Step 3: Cross multiply
282,889.64x = 390,398.12 × 155,577.08 - Step 4: Simplify right side
282,889.64x = 60,736,996,817.21 - Step 5: Solve for x
x = 60,736,996,817.21/282,889.64 - Step 6: Final answer
x = 214,702.09
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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.