Finding the Fourth Proportional to 389,057.08, 536,888.04 and 216,980.26
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Solution
The fourth proportional to 389,057.08, 536,888.04 and 216,980.26 is: 299,426.77
Step by Step Solution
- Step 1: Write the proportion equation
389,057.08 : 536,888.04 = 216,980.26 : x - Step 2: Convert to fraction form
389,057.08/536,888.04 = 216,980.26/x - Step 3: Cross multiply
389,057.08x = 536,888.04 × 216,980.26 - Step 4: Simplify right side
389,057.08x = 116,494,106,510.09 - Step 5: Solve for x
x = 116,494,106,510.09/389,057.08 - Step 6: Final answer
x = 299,426.77
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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.