Finding the Fourth Proportional to 319,688.08, 441,138.14 and 176,438.90
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Solution
The fourth proportional to 319,688.08, 441,138.14 and 176,438.90 is: 243,468.34
Step by Step Solution
- Step 1: Write the proportion equation
319,688.08 : 441,138.14 = 176,438.90 : x - Step 2: Convert to fraction form
319,688.08/441,138.14 = 176,438.90/x - Step 3: Cross multiply
319,688.08x = 441,138.14 × 176,438.90 - Step 4: Simplify right side
319,688.08x = 77,833,926,570.54 - Step 5: Solve for x
x = 77,833,926,570.54/319,688.08 - Step 6: Final answer
x = 243,468.34
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1.5x scale
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.