Finding the Fourth Proportional to 615,437.08, 923,142.56 and 205,136.05
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Solution
The fourth proportional to 615,437.08, 923,142.56 and 205,136.05 is: 307,699.72
Step by Step Solution
- Step 1: Write the proportion equation
615,437.08 : 923,142.56 = 205,136.05 : x - Step 2: Convert to fraction form
615,437.08/923,142.56 = 205,136.05/x - Step 3: Cross multiply
615,437.08x = 923,142.56 × 205,136.05 - Step 4: Simplify right side
615,437.08x = 189,369,818,345.29 - Step 5: Solve for x
x = 189,369,818,345.29/615,437.08 - Step 6: Final answer
x = 307,699.72
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1.5x scale
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.