Finding the Fourth Proportional to 316,681.35, 437,004.03 and 173,438.32
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Solution
The fourth proportional to 316,681.35, 437,004.03 and 173,438.32 is: 239,335.99
Step by Step Solution
- Step 1: Write the proportion equation
316,681.35 : 437,004.03 = 173,438.32 : x - Step 2: Convert to fraction form
316,681.35/437,004.03 = 173,438.32/x - Step 3: Cross multiply
316,681.35x = 437,004.03 × 173,438.32 - Step 4: Simplify right side
316,681.35x = 75,793,243,929.24 - Step 5: Solve for x
x = 75,793,243,929.24/316,681.35 - Step 6: Final answer
x = 239,335.99
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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.