Finding the Fourth Proportional to 918.99, 1,267.95 and 525.99
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Solution
The fourth proportional to 918.99, 1,267.95 and 525.99 is: 725.72
Step by Step Solution
- Step 1: Write the proportion equation
918.99 : 1,267.95 = 525.99 : x - Step 2: Convert to fraction form
918.99/1,267.95 = 525.99/x - Step 3: Cross multiply
918.99x = 1,267.95 × 525.99 - Step 4: Simplify right side
918.99x = 666,929.02 - Step 5: Solve for x
x = 666,929.02/918.99 - Step 6: Final answer
x = 725.72
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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.