Finding the Fourth Proportional to 319,679.18, 441,156.35 and 176,438.19
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Solution
The fourth proportional to 319,679.18, 441,156.35 and 176,438.19 is: 243,484.20
Step by Step Solution
- Step 1: Write the proportion equation
319,679.18 : 441,156.35 = 176,438.19 : x - Step 2: Convert to fraction form
319,679.18/441,156.35 = 176,438.19/x - Step 3: Cross multiply
319,679.18x = 441,156.35 × 176,438.19 - Step 4: Simplify right side
319,679.18x = 77,836,827,901.01 - Step 5: Solve for x
x = 77,836,827,901.01/319,679.18 - Step 6: Final answer
x = 243,484.20
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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.