Finding the Fourth Proportional to 411,164.18, 616,979.58 and 162,021.14
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Solution
The fourth proportional to 411,164.18, 616,979.58 and 162,021.14 is: 243,123.65
Step by Step Solution
- Step 1: Write the proportion equation
411,164.18 : 616,979.58 = 162,021.14 : x - Step 2: Convert to fraction form
411,164.18/616,979.58 = 162,021.14/x - Step 3: Cross multiply
411,164.18x = 616,979.58 × 162,021.14 - Step 4: Simplify right side
411,164.18x = 99,963,734,908.32 - Step 5: Solve for x
x = 99,963,734,908.32/411,164.18 - Step 6: Final answer
x = 243,123.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.