Finding the Fourth Proportional to 439,953.99, 607,136.90 and 238,749.99
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Solution
The fourth proportional to 439,953.99, 607,136.90 and 238,749.99 is: 329,475.20
Step by Step Solution
- Step 1: Write the proportion equation
439,953.99 : 607,136.90 = 238,749.99 : x - Step 2: Convert to fraction form
439,953.99/607,136.90 = 238,749.99/x - Step 3: Cross multiply
439,953.99x = 607,136.90 × 238,749.99 - Step 4: Simplify right side
439,953.99x = 144,953,927,609.88 - Step 5: Solve for x
x = 144,953,927,609.88/439,953.99 - Step 6: Final answer
x = 329,475.20
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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.