Finding the Fourth Proportional to 319,683.99, 441,132.50 and 176,434.79
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Solution
The fourth proportional to 319,683.99, 441,132.50 and 176,434.79 is: 243,462.67
Step by Step Solution
- Step 1: Write the proportion equation
319,683.99 : 441,132.50 = 176,434.79 : x - Step 2: Convert to fraction form
319,683.99/441,132.50 = 176,434.79/x - Step 3: Cross multiply
319,683.99x = 441,132.50 × 176,434.79 - Step 4: Simplify right side
319,683.99x = 77,831,116,911.84 - Step 5: Solve for x
x = 77,831,116,911.84/319,683.99 - Step 6: Final answer
x = 243,462.67
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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.